CVE-2026-58143

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-10. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

Cotonti Siena 0.9.26 and earlier contains a cross-site request forgery vulnerability that allows unauthenticated attackers to modify administrator configuration by tricking a logged-in administrator into submitting a forged POST request to the admin.php config update handler, which never invokes the application's CSRF validation function. Attackers can disable the PFS module's file extension whitelist by setting pfsfilecheck to 0, enabling any user with PFS access to upload and execute arbitrary PHP files on the server.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
7.1%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 14, 2026

Advisory Details (2)

Auto-updated Jul 9, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Cotonti Siena 0.9.26 CSRF via admin.php Config Update Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/cotonti-siena-csrf-via-admin-php-config-update-endpoint
generic🟡 PoC Available

CVE-2026-58143 & CVE-2026-58144 — Cotonti CMS CSRF to RCE and Stored XSS PoC · GitHub

https://gist.github.com/sermikr0/75686815e441c07462cfdea2fed5d305

Vendor Advisories for CVE-2026-58143(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 34× in last 7d / 34× 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. 2026-07-15 22:43 UTCEG score recompute
  2. 2026-07-15 22:43 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 09:35 UTCEG score recompute
  6. 2026-07-15 09:35 UTCGHSA enrichment
  7. 2026-07-15 02:00 UTCEPSS rescore
  8. 2026-07-15 02:00 UTCEPSS rescore
  9. 2026-07-14 20:26 UTCEG score recompute
  10. 2026-07-14 20:26 UTCGHSA enrichment
  11. 2026-07-14 07:18 UTCEG score recompute
  12. 2026-07-14 07:18 UTCGHSA enrichment
  13. 2026-07-13 22:31 UTCEPSS rescore
  14. 2026-07-13 18:09 UTCEG score recompute
  15. 2026-07-13 18:09 UTCGHSA enrichment
  16. 2026-07-13 06:13 UTCEPSS rescore
  17. 2026-07-13 06:13 UTCEPSS rescore
  18. 2026-07-13 05:01 UTCEG score recompute
  19. 2026-07-13 05:01 UTCGHSA enrichment
  20. 2026-07-12 15:52 UTCEG score recompute
  21. 2026-07-12 15:52 UTCGHSA enrichment
  22. 2026-07-12 05:46 UTCEPSS rescore
  23. 2026-07-12 02:43 UTCEG score recompute
  24. 2026-07-12 02:43 UTCGHSA enrichment
  25. 2026-07-11 13:35 UTCEG score recompute
Show 9 more
  1. 2026-07-11 13:35 UTCGHSA enrichment
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-11 00:27 UTCEG score recompute
  5. 2026-07-11 00:27 UTCGHSA enrichment
  6. 2026-07-10 11:19 UTCEG score recompute
  7. 2026-07-10 11:18 UTCGHSA enrichment
  8. 2026-07-09 22:10 UTCEG score recompute
  9. 2026-07-09 22:10 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58143?
CVE-2026-58143 is a high vulnerability published on July 9, 2026. Cotonti Siena 0.9.26 and earlier contains a cross-site request forgery vulnerability that allows unauthenticated attackers to modify administrator configuration by tricking a logged-in administrator into submitting a forged POST request to the admin.php config update handler, which never invokes…
When was CVE-2026-58143 disclosed?
CVE-2026-58143 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58143 actively exploited?
CVE-2026-58143 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-58143?
CVE-2026-58143 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-58143?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58143, 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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