CVE-2026-48084

HIGHPre-NVD 7.47.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (33rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated

Also known asEUVD-2026-54157 (ENISA EUVD)Source: ENISA EUVD

7.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.4Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Versions prior to 1.0.2 don't throttle failed passphrase login attempts. An attacker can submit unlimited wrong passphrase guesses against any known email address, capped only by the Argon2 verification cost (about 100 milliseconds per attempt on the tested host, giving 10 attempts per second sustained). The same backend implements a working per-account throttle on the WebAuthn challenge endpoint, which returns HTTP 429 after roughly 19 attempts. The passphrase branch simply does not invoke that throttle, leaving a supported high-value login path unprotected against credential stuffing and dictionary attacks. The asymmetry confirms this is an oversight rather than a design choice. The throttle infrastructure exists, is wired into the same auth backend, and works on the WebAuthn path. The passphrase branch in /api/auth/login was not updated to record failed attempts. Combined with the application's minimum-passphrase policy (12 characters, no entropy or dictionary checks), accounts using common base patterns such as Spring2026!XX or words from a leak corpus are realistically reachable in days on a single CPU, hours on a small GPU farm. Version 1.0.2 patches the issue.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity74% × 45%
Impact severity (EG Severity): CVSS 7.4 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.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
33rd
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 (7.4): severity, escalated by confirmed exploitation. This CVE's 7.4 is its impact severity (EG Severity), not escalated.

EG Severity
7.4 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.4% 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.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, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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

August 6, 2026

Last Modified

October 23, 2026

Advisory Details (2)

Auto-updated Aug 6, 2026
Patch available. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

passphrase login attempts are not rate-limited · Advisory · open-reception/appointment-booking-software · GitHub

https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-hhg5-xmjg-3m93
GitHub commit Patch Available

commit b283dbb670e0 (open-reception/appointment-booking-software)

Patch available: open-reception/appointment-booking-software v1.0.2 (contains commit b283dbb670e0)

https://github.com/open-reception/appointment-booking-software/commit/b283dbb670e09112299fb0cf89f3cb054ecc1700

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 30× 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 150 rows on record for this CVE.

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. None are among the latest 100 rows. The 50 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 23:07 UTCEchelonGraph re-scored
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
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  9. 2026-11-06 06:12 UTCEchelonGraph re-scored
  10. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  11. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  12. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
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  17. 2026-10-30 13:51 UTCEchelonGraph re-scored
  18. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
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  23. 2026-10-25 14:23 UTCEchelonGraph re-scored
  24. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  25. 2026-10-23 21:27 UTCEchelonGraph re-scored
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  1. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
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  7. 2026-10-18 03:35 UTCEchelonGraph re-scored
  8. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-17 12:31 UTCEchelonGraph re-scored
  10. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
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  15. 2026-10-12 16:01 UTCEchelonGraph re-scored
  16. 2026-10-11 19:44 UTCEchelonGraph re-scored
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  19. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
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  24. 2026-10-06 23:22 UTCEchelonGraph re-scored
  25. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  26. 2026-10-05 18:35 UTCEchelonGraph re-scored
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  28. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
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  39. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
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  42. 2026-09-25 04:19 UTCEchelonGraph re-scored
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  44. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  45. 2026-09-23 00:32 UTCEchelonGraph re-scored
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  49. 2026-09-20 03:11 UTCEchelonGraph re-scored
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  56. 2026-09-15 14:21 UTCEchelonGraph re-scored
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  58. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 29th percentile
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  61. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 29th percentile
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Frequently asked(5)

What is CVE-2026-48084?
CVE-2026-48084 is a high-severity vulnerability; its CVE record was published on August 6, 2026. OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Versions prior to 1.0.2 don't throttle failed passphrase login attempts. An attacker can submit unlimited wrong passphrase guesses against any known email address, capped only by the Argon2…
When was the CVE record for CVE-2026-48084 published?
The CVE record for CVE-2026-48084 was published on August 6, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 23, 2026; the record at its source may have been updated since.
Is CVE-2026-48084 actively exploited?
CVE-2026-48084 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-48084?
CVE-2026-48084 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-48084?
A fix for CVE-2026-48084 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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