CVE-2025-52564

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 91% 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
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

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

Chamilo is a learning management system. Prior to version 1.11.30, the open parameter of help.php fails to properly sanitize user input. This allows an attacker to inject arbitrary HTML, such as underlined text, via a crafted URL. This issue has been patched in version 1.11.30.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

March 2, 2026

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 4, 2026
Patch available. Sources: github_commit, github_release, github.
github Patch Available

HTML injection via open parameter (<=1.11.28) · Advisory · chamilo/chamilo-lms · GitHub

Affected: version 1.11.30.

https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-6fmm-qrx4-wgqc
github_release Patch Available

v1.11.30

Patch available: chamilo/chamilo-lms v1.11.30

https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.30
github_commit

commit 1ee2d8bb61b6 (chamilo/chamilo-lms)

Fix landed in chamilo/chamilo-lms commit 1ee2d8bb61b6 — awaiting tagged release

https://github.com/chamilo/chamilo-lms/commit/1ee2d8bb61b67e08946cd80b1a9b92c1a9959c7b
github_commit

commit 083b1d2b0c29 (chamilo/chamilo-lms)

Fix landed in chamilo/chamilo-lms commit 083b1d2b0c29 — awaiting tagged release

https://github.com/chamilo/chamilo-lms/commit/083b1d2b0c29b0cc0313a28165ad47bebae9dcb2

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 32× 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. 2026-09-19 15:42 UTCEPSS rescore
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 18:36 UTCOSV refresh
  5. 2026-09-17 19:29 UTCEPSS rescore
  6. 2026-09-16 14:07 UTCEPSS rescore
  7. 2026-09-16 05:14 UTCEPSS rescore
  8. 2026-09-13 16:46 UTCEPSS rescore
  9. 2026-09-12 15:00 UTCEPSS rescore
  10. 2026-09-11 14:52 UTCEPSS rescore
  11. 2026-09-11 09:36 UTCEPSS rescore
  12. 2026-09-10 09:34 UTCEPSS rescore
  13. 2026-09-08 21:59 UTCEPSS rescore
  14. 2026-09-07 16:00 UTCEPSS rescore
  15. 2026-09-06 13:47 UTCEPSS rescore
  16. 2026-09-05 15:28 UTCEPSS rescore
  17. 2026-09-04 05:06 UTCEPSS rescore
  18. 2026-09-02 14:11 UTCEPSS rescore
  19. 2026-09-01 13:53 UTCEPSS rescore
  20. 2026-09-01 04:38 UTCEPSS rescore
  21. 2026-08-30 22:04 UTCOSV refresh
  22. 2026-08-30 19:16 UTCEPSS rescore
  23. 2026-08-30 01:21 UTCEPSS rescore
  24. 2026-08-28 21:40 UTCEPSS rescore
  25. 2026-08-27 14:24 UTCEPSS rescore
Show 42 more
  1. 2026-08-26 14:45 UTCEPSS rescore
  2. 2026-08-25 13:48 UTCEPSS rescore
  3. 2026-08-24 14:16 UTCEPSS rescore
  4. 2026-08-24 09:22 UTCEPSS rescore
  5. 2026-08-23 00:18 UTCEPSS rescore
  6. 2026-08-21 23:48 UTCEPSS rescore
  7. 2026-08-20 22:54 UTCEPSS rescore
  8. 2026-08-19 17:03 UTCEPSS rescore
  9. 2026-08-18 13:47 UTCEPSS rescore
  10. 2026-08-17 13:46 UTCEPSS rescore
  11. 2026-08-16 14:55 UTCEPSS rescore
  12. 2026-08-16 02:13 UTCEPSS rescore
  13. 2026-08-15 01:29 UTCEPSS rescore
  14. 2026-08-14 08:45 UTCEG score recompute
  15. 2026-08-13 21:59 UTCEPSS rescore
  16. 2026-08-13 00:37 UTCEG score recompute
  17. 2026-08-12 13:50 UTCEPSS rescore
  18. 2026-08-12 13:50 UTCEPSS rescore
  19. 2026-08-11 13:42 UTCEPSS rescore
  20. 2026-08-11 07:00 UTCEG score recompute
  21. 2026-08-10 23:59 UTCEPSS rescore
  22. 2026-08-10 08:13 UTCEG score recompute
  23. 2026-08-09 13:46 UTCEPSS rescore
  24. 2026-08-09 08:22 UTCEG score recompute
  25. 2026-08-08 16:36 UTCEPSS rescore
  26. 2026-08-07 20:20 UTCEG score recompute
  27. 2026-08-07 16:26 UTCEPSS rescore
  28. 2026-08-06 13:46 UTCEPSS rescore
  29. 2026-08-06 02:51 UTCEG score recompute
  30. 2026-08-05 19:16 UTCEPSS rescore
  31. 2026-08-04 15:09 UTCEPSS rescore
  32. 2026-08-04 15:09 UTCEPSS rescore
  33. 2026-08-04 04:38 UTCEG score recompute
  34. 2026-08-03 10:35 UTCEPSS rescore
  35. 2026-08-02 19:13 UTCEG score recompute
  36. 2026-08-02 02:26 UTCEPSS rescore
  37. 2026-08-01 04:15 UTCEPSS rescore
  38. 2026-07-30 16:27 UTCEPSS rescore
  39. 2026-07-30 01:30 UTCEPSS rescore
  40. 2026-07-28 15:35 UTCEPSS rescore
  41. 2026-07-27 13:59 UTCEG score recompute
  42. 2026-07-27 13:57 UTCOSV refresh

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-52564?
CVE-2025-52564 is a medium vulnerability published on March 2, 2026. Chamilo is a learning management system. Prior to version 1.11.30, the open parameter of help.php fails to properly sanitize user input. This allows an attacker to inject arbitrary HTML, such as underlined text, via a crafted URL. This issue has been patched in version 1.11.30.
When was CVE-2025-52564 disclosed?
CVE-2025-52564 was first published in the National Vulnerability Database on March 2, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-52564 actively exploited?
CVE-2025-52564 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 90.8% of all scored CVEs.
What is the CVSS score of CVE-2025-52564?
CVE-2025-52564 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2025-52564?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-52564, 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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