PT-2026-23656 · Humhub · Humhub

Lassi · Published 2026-03-06 · Updated 2026-03-10 · CVE-2026-29048

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions HumHub version 1.18.0

Description HumHub is an Open Source Enterprise Social Network. A cross-site scripting issue exists in the Button component due to inconsistent output encoding. This allows for the injection and execution of malicious scripts within a user's browser.

Recommendations Update to version 1.18.1.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-29048

GHSA-QXJH-478X-23GM

Affected Products

Humhub

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29048.json · Exploit
• https://github.com/humhub/humhub/commit/bd06ab4c75f6c65295ee3e1ce3643437e8f9d10a · Patch
• https://github.com/humhub/humhub/security/advisories/GHSA-qxjh-478x-23gm · Vendor Advisory
• https://github.com/humhub/humhub/pull/8039 · Patch
• https://osv.dev/vulnerability/CVE-2026-29048 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-29048 · Security Note
• https://github.com/humhub/humhub/releases/tag/v1.18.1 · Note
• https://t.me/CVEtracker/46574 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2029917417195900932 · Twitter Post
• https://twitter.com/dailycve/status/2031214136109990275 · Twitter Post
• https://twitter.com/CVEnew/status/2029975550258016456 · Twitter Post