CVE-2023-0376: Qubely < 1.8.5 - Contributor+ Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-01-16 · updated 2026-06-17
Weakness: CWE-79

Description

The Qubely WordPress plugin before 1.8.5 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Affected products

Themeum Qubely: before 1.8.5 — fixed in 1.8.5

How to fix

Upgrade to a fixed version: Themeum Qubely 1.8.5. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/b1aa6f32-c1d5-4fc6-9a4e-d4c5fae78389/
https://wpscan.com/vulnerability/b1aa6f32-c1d5-4fc6-9a4e-d4c5fae78389/

Get alerted when CVE-2023-0376 or the next vulnerability affects your stack