CVE-2020-15255

HIGHNVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under NVD CVSS v3. EPSS exploit probability: 3.5%, top 12% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4%CVSS: 8.7Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In Anuko Time Tracker before verion 1.19.23.5325, due to not properly filtered user input a CSV export of a report could contain cells that are treated as formulas by spreadsheet software (for example, when a cell value starts with an equal sign). This is fixed in version 1.19.23.5325.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity87% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
89%
KEV
Not listed

Published

October 16, 2020

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Sep 1, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
generic🟡 PoC Available

Anuko Time Tracker 1.19.23.5325 - CSV/Formula Injection - PHP webapps Exploit

https://www.exploit-db.com/exploits/49027
github Patch Available

CSV injection (formula injection) · Advisory · anuko/timetracker · GitHub

Affected: version 1.19.23.5325. Update Time Tracker to version 1.19.23.5325 or later,

https://github.com/anuko/timetracker/security/advisories/GHSA-prjf-9mgh-8fpv
github_commit

commit d94729043614 (anuko/timetracker)

Fix landed in anuko/timetracker commit d94729043614 — awaiting tagged release

https://github.com/anuko/timetracker/commit/d9472904361495f318c9d0294ffd28acaaeae42f
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/159996/Anuko-Time-Tracker-1.19.23.5325-CSV-Injection.html

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 27× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 149 total refreshes for this CVE.

  1. 2026-09-18 19:23 UTCEPSS rescore
  2. 2026-09-17 19:22 UTCEPSS rescore
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  1. 2026-08-21 23:45 UTCEPSS rescore
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  8. 2026-08-15 03:37 UTCOSV refresh
  9. 2026-08-15 01:26 UTCEPSS rescore
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  22. 2026-07-30 16:25 UTCEPSS rescore
  23. 2026-07-30 16:14 UTCOSV refresh
  24. 2026-07-30 01:27 UTCEPSS rescore
  25. 2026-07-28 15:32 UTCEPSS rescore
  26. 2026-07-27 14:06 UTCEPSS rescore
  27. 2026-07-26 14:51 UTCEPSS rescore
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  33. 2026-07-23 01:49 UTCEG score recompute
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  44. 2026-07-16 16:59 UTCEPSS rescore
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  46. 2026-07-15 01:57 UTCEPSS rescore
  47. 2026-07-13 22:27 UTCEPSS rescore
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  49. 2026-07-13 06:10 UTCEPSS rescore
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  51. 2026-07-13 01:08 UTCOSV refresh
  52. 2026-07-12 05:44 UTCEPSS rescore
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  55. 2026-07-09 19:07 UTCEPSS rescore
  56. 2026-07-08 15:12 UTCEPSS rescore
  57. 2026-07-07 13:43 UTCEPSS rescore
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  59. 2026-07-06 16:25 UTCEPSS rescore
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  64. 2026-07-04 06:29 UTCEPSS rescore
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  66. 2026-07-01 15:03 UTCEPSS rescore
  67. 2026-06-30 23:20 UTCEPSS rescore
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  69. 2026-06-28 14:05 UTCEPSS rescore
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  72. 2026-06-27 03:06 UTCEPSS rescore
  73. 2026-06-25 13:47 UTCEPSS rescore
  74. 2026-06-24 14:03 UTCEPSS rescore
  75. 2026-06-24 14:03 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-49027
    First seen Nov 10, 2020

    Anuko Time Tracker 1.19.23.5325 - CSV/Formula Injection

    Open source ↗

Frequently asked(5)

What is CVE-2020-15255?
CVE-2020-15255 is a high vulnerability published on October 16, 2020. In Anuko Time Tracker before verion 1.19.23.5325, due to not properly filtered user input a CSV export of a report could contain cells that are treated as formulas by spreadsheet software (for example, when a cell value starts with an equal sign). This is fixed in version 1.19.23.5325.
When was CVE-2020-15255 disclosed?
CVE-2020-15255 was first published in the National Vulnerability Database on October 16, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-15255 actively exploited?
CVE-2020-15255 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 11.4% of all scored CVEs.
What is the CVSS score of CVE-2020-15255?
CVE-2020-15255 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2020-15255?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15255, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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