CVE-2023-1780: Companion Sitemap Generator < 4.5.3 - Reflected XSS

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-07-10 · updated 2026-06-17
Weakness: CWE-79

Description

The Companion Sitemap Generator WordPress plugin before 4.5.3 does not sanitise and escape some parameters before outputting them back in pages, leading to Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

Affected products

Companion Sitemap Generator: before 4.5.3 — fixed in 4.5.3

How to fix

Upgrade to a fixed version: Companion Sitemap Generator 4.5.3. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/8176308f-f210-4109-9c88-9372415dbed3
https://wpscan.com/vulnerability/8176308f-f210-4109-9c88-9372415dbed3

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