WordPress Contest Gallery Plugin <= 21.3.4 is vulnerable to Arbitrary File Deletion

Patch priority: medium
Medium priority vPatch available
Vulnerable version
<= 21.3.4 Vulnerable version
21.3.5 Fixed version

22 April 2024 by Patchstack


CVSS 8.5

This vulnerability is moderately dangerous and expected to become exploited.


Arbitrary File Deletion

This could allow a malicious actor to delete files from your website. If core files are deleted from your website, it could cause your site to break and stop functioning.

This is a general description of this vulnerability type, specific impact varies case by case. CVSS score is a way to evaluate and rank reported vulnerabilities in a standardized and repeatable way, but it is not ideal for WordPress.


We advise to mitigate or resolve the vulnerability immediately.

Update to version X or later

Update to version 21.3.5 or later.

Update to version 21.3.5 or later to remove the vulnerability. Patchstack users can turn on auto-update for vulnerable plugins only.


Have additional information or questions about this entry? Let us know.


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Reported by

CatFather CatFather
09 Feb 2024
Early warning sent out

Early warning sent out to Patchstack customers

22 Apr 2024
Published by Patchstack

Published by Patchstack

24 Apr 2024

Over 70% of all known WordPress vulnerabilities were originally published by Patchstack in 2023 and hundreds of popular plugins such as Elementor, RankMath and WProcket have set Patchstack as their official security partner.

Patchstack vPatching auto-mitigates security vulnerabilities even when there's no official patch available. It's the fastest and most effective way to eliminate new security vulnerabilities without sacrificing performance.

Hackers automate attacks against new security vulnerabilities to take over as many websites as they can before users have time to patch and update. The attacks are opportunistic and victims are not chosen - everyone is a target.

We recommend reaching out to your hosting provider for server-side malware scanning or use a professional incident response service. Don't rely on plugin based malware scanners as they are commonly tampered with by malware.

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