CVE-2021-24888: ImageBoss < 3.0.6 - Admin+ Stored Cross-Site Scripting

Severity: medium (CVSS 4.8 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: 2021-11-23 · updated 2026-06-17
Weakness: CWE-79

Description

The ImageBoss WordPress plugin before 3.0.6 does not sanitise and escape its Source Name setting, which could allow high privilege users to perform Cross-Site Scripting attacks

Affected products

ImageBoss – Images Up To 60% Smaller & CDN: before 3.0.6 — fixed in 3.0.6

How to fix

Upgrade to a fixed version: ImageBoss – Images Up To 60% Smaller & CDN 3.0.6. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/19bffa71-705c-42fc-b2ca-bf62fabb70a0
https://wpscan.com/vulnerability/19bffa71-705c-42fc-b2ca-bf62fabb70a0

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