Vulnerability · Published Oct 10, 2026 · Assigned by Wordfence

CVE-2026-10774210Web Booster <= 2.34.8 - Unauthenticated Stored Cross-Site Scripting via Comment Author Name

High 7.2

In plain English

A high-severity cross-site scripting in 10Web Booster – Website speed optimization, Cache & Page Speed optimizer from 10web. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.2%top 84.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The 10Web Booster – Website speed optimization, Cache & Page Speed optimizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'author' parameter in all versions up to, and including, 2.34.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable because a comment author Name value containing ' src=' and an event-handler payload contains no HTML tags or quote characters, allowing it to survive WordPress core's sanitize_text_field and land verbatim inside the alt attribute, where the plugin's own str_replace subsequently injects the single quote that breaks out of the attribute context.

Affected products (as reported)

Vendor	Product	Versions
10web	10Web Booster – Website speed optimization, Cache & Page Speed optimizer	0 – through 2.34.8

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References