CVE-2021-24973: Site Reviews < 5.17.3 - Unauthenticated Stored Cross-Site Scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-01-03 · updated 2026-06-17
Weakness: CWE-79

Description

The Site Reviews WordPress plugin before 5.17.3 does not sanitise and escape the site-reviews parameter of the glsr_action AJAX action (available to unauthenticated and any authenticated users), allowing them to perform Cross-Site Scripting attacks against logged in admins viewing the Tool dashboard of the plugin

Affected products

Gemini Labs Site Reviews: before 5.17.3 — fixed in 5.17.3

How to fix

Upgrade to a fixed version: Gemini Labs Site Reviews 5.17.3. Check the vendor advisory for mitigations.

References

https://plugins.trac.wordpress.org/changeset/2629821
https://wpscan.com/vulnerability/0118f245-0e6f-44c1-9bdb-5b3a5d2403d6
https://plugins.trac.wordpress.org/changeset/2629821
https://wpscan.com/vulnerability/0118f245-0e6f-44c1-9bdb-5b3a5d2403d6

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