CVE-2023-0276: Weaver Xtreme Theme Support < 6.2.7 - Contributor+ Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-04-24 · updated 2026-06-17

Description

The Weaver Xtreme Theme Support WordPress plugin before 6.2.7 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Affected products

wpweaver Weaver Xtreme Theme Support: before 6.2.7 — fixed in 6.2.7

How to fix

Upgrade to a fixed version: wpweaver Weaver Xtreme Theme Support 6.2.7. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/d00824a3-7df5-4b52-a31b-5fdfb19c970f
https://wpscan.com/vulnerability/d00824a3-7df5-4b52-a31b-5fdfb19c970f

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