PT-2024-15096 · WordPress · Wp Compress – Image Optimizer

Krzysztof Zając · Published 2024-05-14 · Updated 2025-08-09 · CVE-2023-6812

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions WP Compress – Image Optimizer versions up to, and including, 6.20.01

Description The issue is related to insufficient validation on the redirect URL supplied via the css parameter, allowing unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.

Recommendations For versions up to, and including, 6.20.01, avoid using the css parameter in the affected plugin until the issue is resolved. As a temporary workaround, consider restricting access to the plugin's functionality to minimize the risk of exploitation.

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2023-6812

Affected Products

Wp Compress – Image Optimizer

References · 5

• https://osv.dev/vulnerability/CVE-2023-6812 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-6812 · Security Note
• https://plugins.trac.wordpress.org/changeset/3082085/wp-compress-image-optimizer/trunk/fixCss.php · Patch
• https://t.me/cveNotify/131536 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/cbbf9fbb-74fd-42eb-a781-2a720fe56b13?source=cve · Note