WordPress Mosaic Gallery – Advanced Gallery plugin <= 1.2.0 - Cross Site Scripting (XSS) vulnerability

published 2026-07-02 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-41311

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits: 0; none known

Contributor Cross Site Scripting (XSS) in Mosaic Gallery – Advanced Gallery <= 1.2.0 versions.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 4 mo ago (2026-07-02)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Affected products

Misbah WP Mosaic Gallery – Advanced Gallery

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/mosaic-gallery-advanced-gallery/vulnerability/wordpress-mosaic-gallery-8211-advance
vdb-entry

Sources

CVE List CVE-2026-57755
NVD CVE-2026-57755

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary