CVE-2026-58143

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM 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 — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: Elevated riskExposed: 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(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
14%
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 19× in last 7d / 105× 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 169 total refreshes for this CVE.

  1. 2026-08-30 06:42 UTCEG score recompute
  2. 2026-08-30 06:42 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-27 21:43 UTCEG score recompute
  6. 2026-08-27 21:43 UTCGHSA enrichment
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-27 00:55 UTCEG score recompute
  9. 2026-08-27 00:55 UTCGHSA enrichment
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-26 03:47 UTCGHSA enrichment
  12. 2026-08-25 13:56 UTCEG score recompute
  13. 2026-08-25 13:56 UTCGHSA enrichment
  14. 2026-08-25 13:49 UTCEPSS rescore
  15. 2026-08-25 00:42 UTCEG score recompute
  16. 2026-08-25 00:42 UTCGHSA enrichment
  17. 2026-08-24 11:26 UTCEG score recompute
  18. 2026-08-24 11:26 UTCGHSA enrichment
  19. 2026-08-23 22:18 UTCGHSA enrichment
  20. 2026-08-23 08:56 UTCEG score recompute
  21. 2026-08-23 08:56 UTCGHSA enrichment
  22. 2026-08-23 00:19 UTCEPSS rescore
  23. 2026-08-22 19:48 UTCGHSA enrichment
  24. 2026-08-22 06:40 UTCEG score recompute
  25. 2026-08-22 06:40 UTCGHSA enrichment
Show 75 more
  1. 2026-08-21 23:49 UTCEPSS rescore
  2. 2026-08-21 17:32 UTCGHSA enrichment
  3. 2026-08-21 04:22 UTCEG score recompute
  4. 2026-08-21 04:22 UTCGHSA enrichment
  5. 2026-08-20 22:55 UTCEPSS rescore
  6. 2026-08-20 15:14 UTCGHSA enrichment
  7. 2026-08-20 01:38 UTCEG score recompute
  8. 2026-08-20 01:38 UTCGHSA enrichment
  9. 2026-08-19 17:04 UTCEPSS rescore
  10. 2026-08-19 09:48 UTCGHSA enrichment
  11. 2026-08-18 20:41 UTCEG score recompute
  12. 2026-08-18 20:40 UTCGHSA enrichment
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-18 02:54 UTCEG score recompute
  15. 2026-08-18 02:54 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 13:02 UTCGHSA enrichment
  18. 2026-08-16 23:54 UTCEG score recompute
  19. 2026-08-16 23:54 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 10:45 UTCEG score recompute
  22. 2026-08-16 10:45 UTCGHSA enrichment
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-15 21:38 UTCGHSA enrichment
  25. 2026-08-15 08:29 UTCEG score recompute
  26. 2026-08-15 08:29 UTCGHSA enrichment
  27. 2026-08-15 01:30 UTCEPSS rescore
  28. 2026-08-14 19:21 UTCGHSA enrichment
  29. 2026-08-14 06:09 UTCEG score recompute
  30. 2026-08-14 06:09 UTCGHSA enrichment
  31. 2026-08-13 22:00 UTCEPSS rescore
  32. 2026-08-13 17:01 UTCGHSA enrichment
  33. 2026-08-13 03:22 UTCGHSA enrichment
  34. 2026-08-12 14:15 UTCEG score recompute
  35. 2026-08-12 14:15 UTCGHSA enrichment
  36. 2026-08-12 13:51 UTCEPSS rescore
  37. 2026-08-12 01:07 UTCEG score recompute
  38. 2026-08-12 01:07 UTCGHSA enrichment
  39. 2026-08-11 11:59 UTCEG score recompute
  40. 2026-08-11 11:59 UTCGHSA enrichment
  41. 2026-08-11 00:00 UTCEPSS rescore
  42. 2026-08-10 22:51 UTCGHSA enrichment
  43. 2026-08-10 09:43 UTCGHSA enrichment
  44. 2026-08-09 20:35 UTCEG score recompute
  45. 2026-08-09 20:35 UTCGHSA enrichment
  46. 2026-08-09 13:46 UTCEPSS rescore
  47. 2026-08-09 07:28 UTCEG score recompute
  48. 2026-08-09 07:28 UTCGHSA enrichment
  49. 2026-08-08 18:20 UTCEG score recompute
  50. 2026-08-08 18:20 UTCGHSA enrichment
  51. 2026-08-08 16:37 UTCEPSS rescore
  52. 2026-08-08 05:12 UTCEG score recompute
  53. 2026-08-08 05:12 UTCGHSA enrichment
  54. 2026-08-07 16:05 UTCGHSA enrichment
  55. 2026-08-07 02:56 UTCGHSA enrichment
  56. 2026-08-06 13:48 UTCEG score recompute
  57. 2026-08-06 13:48 UTCGHSA enrichment
  58. 2026-08-06 13:47 UTCEPSS rescore
  59. 2026-08-06 00:40 UTCEG score recompute
  60. 2026-08-06 00:40 UTCGHSA enrichment
  61. 2026-08-05 19:17 UTCEPSS rescore
  62. 2026-08-05 11:32 UTCGHSA enrichment
  63. 2026-08-04 21:52 UTCEG score recompute
  64. 2026-08-04 21:52 UTCGHSA enrichment
  65. 2026-08-04 15:10 UTCEPSS rescore
  66. 2026-08-04 10:39 UTCEPSS rescore
  67. 2026-08-04 08:44 UTCGHSA enrichment
  68. 2026-08-03 19:36 UTCEG score recompute
  69. 2026-08-03 19:36 UTCGHSA enrichment
  70. 2026-08-03 10:36 UTCEPSS rescore
  71. 2026-08-03 06:28 UTCGHSA enrichment
  72. 2026-08-02 17:16 UTCGHSA enrichment
  73. 2026-08-02 04:08 UTCEG score recompute
  74. 2026-08-02 04:08 UTCGHSA enrichment
  75. 2026-08-02 02:27 UTCEPSS rescore

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 0% probability of exploitation in the next 30 days, which ranks it in the top 85.7% of all scored CVEs.
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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