CVE-2025-5291 — Cross-site Scripting in Master Slider

CWE-79 — Cross-site ScriptingCWE-269 — Improper Privilege Management3 documents3 sources
Severity
5.4MEDIUMNVD
EPSS
0.2%
top 58.46%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Averta Master SliderAverta Master Slider Responsive Touch SliderMsrc CBL Mariner 1.0 ARM+2 more
Timeline
PublishedJun 17

Description

The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's masterslider_pb and ms_slide shortcodes in all versions up to, and including, 3.10.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NExploitability: 2.3 | Impact: 2.7

Affected Packages5 packages

▶NVDaverta/master_slider< 3.10.9

Patches

Patch: plugins.trac.wordpress.org ↗

🔴Vulnerability Details

1
GHSA
GHSA-wx3j-x35p-pqp4: The Master Slider – Responsive Touch Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's masterslider_pb and ms_↗2025-06-17
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📋Vendor Advisories

1
Microsoft
Privilege escalation in setuid mode via user namespaces in Bubblewrap↗2020-03-10
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