CVE-2013-4117: Cross-site scripting (XSS) vulnerability in includes/CatGridPost.php in the Category Grid View Gallery plugin

This week

MEDIUM 4.3DOWNGRADE

CVE-2013-4117 is a medium-severity flaw (CVSS 4.3) affecting category-grid-view-gallery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in includes/CatGridPost.php in the Category Grid View Gallery plugin 2.3.1 for WordPress allows remote attackers to inject arbitrary web script or HTML via the ID parameter.

Why this priority

EPSS top 4%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	13.0% (top 4%)
CISA exploited list	No
Weakness	CWE-79
Published	2013-07-16
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: anshul sharma

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-07-16 14:08 UTCPublished CVE record published
2026-06-16 23:56 UTCUpdated Record last modified

anshul sharma category-grid-view-gallery DOWNGRADE

Affected: 2.3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3.1

1. Check installed version

apt-cache policy category-grid-view-gallery || rpm -q category-grid-view-gallery || category-grid-view-gallery --version

2. No fixed release: DOWNGRADE to a release before 2.3.1 (Debian / Ubuntu)

apt-cache madison category-grid-view-gallery sudo apt install category-grid-view-gallery=<VERSION_BEFORE_2.3.1> sudo apt-mark hold category-grid-view-gallery

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list category-grid-view-gallery sudo dnf downgrade category-grid-view-gallery-<VERSION_BEFORE_2.3.1> sudo dnf versionlock add category-grid-view-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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: WordPress Plugin Category Grid View Gallery - 'ID' Cross-Site Scripting
Nuclei scan template: WordPress Plugin Category Grid View Gallery 2.3.1 - Cross-Site Scripting

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-2013-4117?

category-grid-view-gallery: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-4117 being exploited?

CVE-2013-4117 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-2013-4117 affect?

CVE-2013-4117 affects category-grid-view-gallery. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in includes/CatGridPost.php in the Category Grid View Gallery plugin 2.3.1 for WordPress allows remote attackers to inject arbitrary web script or HTML via the ID parameter.

How urgent is CVE-2013-4117?

Priority 44/100. EPSS top 4%: very likely to be exploited; Public exploit reference

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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