PT-2025-7686 · Moodle+2 · Moodle+2

Nightbloodz · CVE-2025-26529 · Published 2025-02-18 · Updated 2026-07-15

Positive Technologies (AI Summary)

CVSS v3.1

8.3

High

Base vector

AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Moodle (affected versions not specified)

Description Insufficient sanitization of description information displayed in the site administration live log allows a remote attacker to perform a stored Cross-Site Scripting (XSS) attack. XSS is a technique where malicious scripts are injected into trusted websites, which are then executed in the browser of the user viewing the page.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2025-6924

ALT-PU-2025-7344

BDU:2025-02329

BIT-MOODLE-2025-26529

CVE-2025-26529

GHSA-WR88-X8CM-7CGQ

Affected Products

Alt Linux

Moodle

Red Os

References · 34

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/26xxx/CVE-2025-26529.json · Exploit
• 🔥 https://github.com/Astroo18/PoC-CVE-2025-26529 · Exploit
• https://osv.dev/vulnerability/CVE-2025-26529 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-02329 · Security Note
• https://moodle.org/mod/forum/discuss.php?d=466145 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-26529 · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-wr88-x8cm-7cgq · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-26529 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-moodle-2025-26529 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-26529 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-26529 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/718392 · Security Note
• http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-84145 · Patch
• https://github.com/moodle/moodle · Note