packages/backend/src/routers in Lightdash before 0.510.3 has insecure file endpoints, e.g., they allow .. directory traversal and do not ensure that an intended file extension (.csv or .png) is used.
CVE-2023-35844
“—” beside the score: it is equal to NVD's CVSS score.
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2023-06-19. NVD baseline CVSS 7.5; sources differ by 0.0.
Also known asEUVD-2023-39837 (ENISA EUVD) · GHSA-x8qg-5w28-wmr9 (GitHub Security Advisories)Source: ENISA EUVD
- Public exploit or proof-of-concept code is available
An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 65EG Risk 65/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity75% × 45%Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it. - EPSS PROB
- 6.3%
- EPSS %ILE
- 93rd
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 6.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
June 19, 2023
Last Modified
December 12, 2024
Advisory Details (4)
Auto-updated Nov 13, 2026fix: add extra security to file endpoints
Fix merged in lightdash/lightdash PR #5090 on 2023-04-14 — awaiting tagged release
https://github.com/lightdash/lightdash/pull/5090Comparing 0.510.2...0.510.3 · lightdash/lightdash · GitHub
https://github.com/lightdash/lightdash/compare/0.510.2...0.510.3commit fcc808c84c2c (lightdash/lightdash)
Fix landed in lightdash/lightdash commit fcc808c84c2c — awaiting tagged release
https://github.com/lightdash/lightdash/commit/fcc808c84c2cc3afb343063e32a49440d32a553cCVE-2023-35844: Arbitrary File Read in Lightdash - dw1's Advisory
https://advisory.dw1.io/59Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 35× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.
Showing the most recent 100 of 200 rows on record for this CVE, as 99 entries (1 repeat merged).
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 100 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-13 06:18 UTCEchelonGraph re-scored
- 2026-11-13 06:18 UTCGHSA enrichmentGHSA-x8qg-5w28-wmr9 · GitHub severity HIGH · GitHub CVSS 7.5
- 2026-11-12 16:30 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-11 16:33 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-10 16:37 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-09 16:30 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-08 16:34 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-07 16:35 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-06 16:31 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-05 16:33 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-05 14:44 UTCEchelonGraph re-scored
- 2026-11-05 14:44 UTCGHSA enrichmentGHSA-x8qg-5w28-wmr9 · GitHub severity HIGH · GitHub CVSS 7.5
- 2026-11-04 16:31 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-03 16:40 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-02 16:39 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-11-01 16:31 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-31 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-30 16:31 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-29 16:30 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-28 23:22 UTCEchelonGraph re-scored
- 2026-10-28 23:22 UTCGHSA enrichmentGHSA-x8qg-5w28-wmr9 · GitHub severity HIGH · GitHub CVSS 7.5
- 2026-10-28 21:25 UTCOSV refresh
- 2026-10-28 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-27 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-26 16:28 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
Show 74 moreShow fewer
- 2026-10-25 17:40 UTCEchelonGraph re-scored
- 2026-10-25 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-24 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-23 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-22 16:31 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-21 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-21 01:29 UTCEchelonGraph re-scored
- 2026-10-21 01:29 UTCGHSA enrichmentGHSA-x8qg-5w28-wmr9 · GitHub severity HIGH · GitHub CVSS 7.5
- 2026-10-20 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-19 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-18 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-18 07:57 UTCEchelonGraph re-scored
- 2026-10-17 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-16 16:35 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-15 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-14 16:29 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-13 16:30 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-12 17:01 UTCEchelonGraph re-scored
- 2026-10-12 17:01 UTCGHSA enrichmentGHSA-x8qg-5w28-wmr9 · GitHub severity HIGH · GitHub CVSS 7.5
- 2026-10-12 16:30 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-11 21:50 UTCEchelonGraph re-scored
- 2026-10-11 13:45 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-10 19:57 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-09 20:05 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-08 17:06 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-07 23:46 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-06 15:15 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-05 17:41 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-04 23:20 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-10-03 14:23 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-30 16:25 UTCEchelonGraph re-scored
- 2026-09-30 15:01 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-29 15:16 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-28 13:49 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-27 13:42 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-26 15:55 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-26 00:22 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-24 14:01 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-23 13:45 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-23 08:53 UTCOSV refresh
- 2026-09-22 14:45 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-20 20:14 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-16 14:05 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-13 16:44 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-12 14:58 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-11 14:50 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-11 09:34 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-08 21:57 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-07 15:59 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-06 13:45 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-05 15:26 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-04 13:58 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-04 05:04 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-04 03:46 UTCOSV refresh
- 2026-09-02 14:09 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-09-01 13:51 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-30 19:15 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-30 01:20 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-28 21:38 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-27 14:23 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-26 14:43 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-25 13:46 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-24 14:14 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-23 00:17 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-21 23:47 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-20 22:53 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-19 17:02 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-18 13:46 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-17 14:59 UTCOSV refresh
- 2026-08-17 13:45 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-16 14:54 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-16 02:12 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-15 01:28 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
- 2026-08-13 21:58 UTCEPSS rescoreEPSS 6.3% · 93rd percentile
Publicly available exploits
(2 references)Public exploit code is referenced for this CVE (1 GitHub PoC), as is 1 Nuclei detection template. A detection template checks whether a system is affected; it is not necessarily exploit code. The fix is not yet in a release, so defenders should restrict or isolate affected systems accordingly until it ships.
- GitHub PoCLserein/CVE-2023-35844Published Jun 26, 2023
Lightdash文件读取漏洞(CVE-2023-35844)
Open source ↗ - Nucleihttp/cves/2023/CVE-2023-35844.yamlPublished Jun 24, 2023
Lightdash version <= 0.510.3 Arbitrary File Read
Open source ↗
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2023-35844?
When was the CVE record for CVE-2023-35844 published?
Is CVE-2023-35844 actively exploited?
What is the CVSS score of CVE-2023-35844?
How do I remediate CVE-2023-35844?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-35844
Is Your Infrastructure Affected by CVE-2023-35844?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.