CVE-2025-9873

MEDIUM

a3 Lazy Load <= 2.7.5 - Authenticated Stored Cross-Site Scripting via User Supplied Attributes

Title source: llm

Description

The a3 Lazy Load plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.7.5 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.

References (3)

Core 3

Core References

Product

https://plugins.trac.wordpress.org/browser/a3-lazy-load/trunk/classes/class-a3-lazy-load.php#L430

Product

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3377146%40a3-lazy-load&new=3377146%40a3-lazy-load&sfp_email=&sfph_mail=

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/0d837229-52fa-42ae-b733-8fbeb444f110?source=cve

Scores

CVSS v3 6.4

EPSS 0.0027

EPSS Percentile 19.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

a3rev/a3 Lazy Load < 2.7.5

Published Dec 13, 2025

Tracked Since Feb 18, 2026