Vulnerability · Published Aug 19, 2026 · Assigned by WPScan

CVE-2026-14287TenWeb Speed Optimizer < 2.33.5 - Unauthenticated Stored XSS via Critical CSS Token Bypass

Medium 4.7

In plain English

A medium-severity cross-site scripting in 10Web Booster from Unknown. 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 12% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium

Exploit odds (30 days)0.2%top 87.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The 10Web Booster WordPress plugin before 2.33.5 does not correctly validate an access token on an unauthenticated request handler and does not escape attacker-supplied stylesheet content before rendering it into the page head, allowing an unauthenticated attacker to store markup that executes as JavaScript in the browser of anonymous visitors to an affected page.

Affected products (as reported)

Vendor	Product	Versions
Unknown	10Web Booster	0 – before 2.33.5

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

References

https://wpscan.com/vulnerability/a0519e86-b77e-4354-a91d-ff729514d570/ exploit, vdb-entry, technical-description