CVE-2025-13646: The Modula Image Gallery plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type

This month

HIGH 7.5UPGRADE

CVE-2025-13646 is a high-severity flaw (CVSS 7.5) affecting modula image gallery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Modula Image Gallery plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'ajax_unzip_file' function in versions 2.13.1 to 2.13.2. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files with race condition on the affected site's server which may make remote code execution possible.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-434
Published	2025-12-03
Last modified	2026-10-18

Publisher (CNA): Wordfence · Vendor: wpchill

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-03 03:16 UTCPublished CVE record published
2026-10-18 17:10 UTCUpdated Record last modified

wpchill modula image gallery UPGRADE

Affected: >= 2.13.1 and < 2.13.3

Fixed in: 2.13.3

Safe to downgrade to: a release before 2.13.1

1. Check installed version

apt-cache policy modula-image-gallery || rpm -q modula-image-gallery || modula-image-gallery --version

2. UPGRADE to 2.13.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade modula-image-gallery

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade modula-image-gallery

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.13.1 (Debian / Ubuntu)

apt-cache madison modula-image-gallery sudo apt install modula-image-gallery=<VERSION_BEFORE_2.13.1> sudo apt-mark hold modula-image-gallery

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list modula-image-gallery sudo dnf downgrade modula-image-gallery-<VERSION_BEFORE_2.13.1> sudo dnf versionlock add modula-image-gallery

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-13646?

modula image gallery: upgrade to 2.13.3. Exact commands for each OS are on this page.

Is CVE-2025-13646 being exploited?

CVE-2025-13646 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-13646 affect?

CVE-2025-13646 affects modula image gallery. Severity is high (CVSS 7.5). The Modula Image Gallery plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'ajax_unzip_file' function in versions 2.13.1 to 2.13.2. This makes it possible for authenticated attackers, wi

How urgent is CVE-2025-13646?

Priority 40/100. High severity

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2025-13645 HIGH 7.2 UPGRADE The Modula Image Gallery plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient fil
CVE-2024-9416 MEDIUM 6.4 UPGRADE The Modula Image Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's bu
CVE-2024-12853 HIGH 8.8 UPGRADE The Modula Image Gallery plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type

References

← Back to latest CVEs