CVE-2023-3155: NextGEN Gallery < 3.39 - Admin+ Arbitrary File Read and Delete

Severity: high (CVSS 7.2 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: 2023-10-16 · updated 2026-06-17
Weakness: CWE-552

Description

The WordPress Gallery Plugin WordPress plugin before 3.39 is vulnerable to Arbitrary File Read and Delete due to a lack of input parameter validation in the `gallery_edit` function, allowing an attacker to access arbitrary resources on the server.

Affected products

Photo Gallery, Sliders, Proofing and Themes: before 3.39 — fixed in 3.39

How to fix

Upgrade to a fixed version: Photo Gallery, Sliders, Proofing and Themes 3.39. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/5c8473f4-4b52-430b-9140-b81b0a0901da
https://wpscan.com/vulnerability/5c8473f4-4b52-430b-9140-b81b0a0901da

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