CVE-2026-13544

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-06-29. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.3Exploit: NoneExposed: 0

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

A flaw has been found in Feehi CMS up to 2.1.1. Affected by this issue is some unknown functionality of the file /api/users of the component API. This manipulation causes improper access controls. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
6.3
EG Score
6.3(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
11.9%
KEV
Not listed

Published

June 29, 2026

Last Modified

June 29, 2026

Advisory Details (2)

Auto-updated Jun 29, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Feehi CMS 2.1.1 - API UserController IDOR allows arbitrary user deletion · Issue #89 · liufee/cms · GitHub

https://github.com/liufee/cms/issues/89
generic🟡 PoC Available

Feehi CMS 2.1.1 - API UserController allows PII enumeration without authorization · Issue #88 · liufee/cms · GitHub

https://github.com/liufee/cms/issues/88

Vendor Advisories for CVE-2026-13544(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 46× 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.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:05 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:30 UTCEPSS rescore
  7. 2026-07-19 02:28 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-16 17:02 UTCEPSS rescore
  10. 2026-07-16 11:42 UTCGHSA enrichment
  11. 2026-07-15 16:57 UTCEPSS rescore
  12. 2026-07-15 09:54 UTCGHSA enrichment
  13. 2026-07-15 02:00 UTCEPSS rescore
  14. 2026-07-14 08:07 UTCGHSA enrichment
  15. 2026-07-13 22:30 UTCEPSS rescore
  16. 2026-07-13 06:15 UTCGHSA enrichment
  17. 2026-07-13 06:12 UTCEPSS rescore
  18. 2026-07-12 04:28 UTCGHSA enrichment
  19. 2026-07-11 08:27 UTCEPSS rescore
  20. 2026-07-11 02:41 UTCGHSA enrichment
  21. 2026-07-10 00:54 UTCGHSA enrichment
  22. 2026-07-09 19:10 UTCEPSS rescore
  23. 2026-07-08 23:02 UTCGHSA enrichment
  24. 2026-07-08 15:15 UTCEPSS rescore
  25. 2026-07-08 15:15 UTCEPSS rescore
Show 21 more
  1. 2026-07-07 21:15 UTCGHSA enrichment
  2. 2026-07-07 13:46 UTCEPSS rescore
  3. 2026-07-06 19:28 UTCGHSA enrichment
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 17:38 UTCGHSA enrichment
  7. 2026-07-04 15:52 UTCGHSA enrichment
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-03 14:06 UTCGHSA enrichment
  10. 2026-07-02 12:20 UTCGHSA enrichment
  11. 2026-07-01 15:06 UTCEPSS rescore
  12. 2026-07-01 15:06 UTCEPSS rescore
  13. 2026-07-01 10:34 UTCGHSA enrichment
  14. 2026-06-30 23:22 UTCEPSS rescore
  15. 2026-06-30 08:48 UTCGHSA enrichment
  16. 2026-06-29 15:26 UTCNVD updateCVSS v4 → 2.1
  17. 2026-06-29 14:52 UTCMITRE cvelistV5CVSS v4 → 5.3
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-29 08:04 UTCNVD updateCVSS v4 → 2.1
  20. 2026-06-29 07:02 UTCEG score recompute
  21. 2026-06-29 07:02 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13544?
CVE-2026-13544 is a medium vulnerability published on June 29, 2026. A flaw has been found in Feehi CMS up to 2.1.1. Affected by this issue is some unknown functionality of the file /api/users of the component API. This manipulation causes improper access controls. The attack can be initiated remotely. The exploit has been published and may be used. The project was…
When was CVE-2026-13544 disclosed?
CVE-2026-13544 was first published in the National Vulnerability Database on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13544 actively exploited?
CVE-2026-13544 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13544?
CVE-2026-13544 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-13544?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13544, 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.

Dependency Blast Radius

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