8.3

CVE-2025-26529: moodle project moodle Cross-site Scripting

CVSS: 8.3v3.1HighAnalyzed
AliasesUBUNTU-CVE-2025-26529
Published 24-02-2025Last modified 24-02-2025
Open JSON

Vulnerability summary

CVE-2025-26529 is a high (CVSS 8.3) Cross-site Scripting vulnerability in moodle project moodle. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 42.8% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.52%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-02-2025
    PublishedVulnerability first disclosed.
  2. 24-02-2025
    Last modifiedVulnerability information updated.

Description

Description information displayed in the site administration live log required additional sanitizing to prevent a stored XSS risk.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

0.00 pp

From 0.52% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Moodle1 product
  • moodle≥ 4.1.0, < 4.1.16 | ≥ 4.3.0, < 4.3.10 | ≥ 4.4.0, < 4.4.6 | ≥ 4.5.0, < 4.5.2
Moodle project1 product
  • moodle≥ 4.5.0, < 4.5.2 | ≥ 4.4.0, < 4.4.6 | ≥ 4.3.0, < 4.3.10 | ≥ 4.1.0, < 4.1.16
Ubuntu1 product
  • moodleAll versions (No fix recorded)

3 vendors · 3 products

References

4 links