CVE-2024-50348: InstantCMS is a free and open source content management system

Q: How do I fix CVE-2024-50348?

instantcms: upgrade to 2.16.3. Exact commands for each OS are on this page.

Q: Is CVE-2024-50348 being exploited?

CVE-2024-50348 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-50348 affect?

CVE-2024-50348 affects instantcms. Severity is medium (CVSS 5.4). InstantCMS is a free and open source content management system. In photo upload function in the photo album page there is no input validation taking place. Due to this attackers are able to inject the XSS (Cross Site Scripting) payload and

Q: How urgent is CVE-2024-50348?

Priority 31/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2024-50348 is a medium-severity flaw (CVSS 5.4) affecting instantcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

InstantCMS is a free and open source content management system. In photo upload function in the photo album page there is no input validation taking place. Due to this attackers are able to inject the XSS (Cross Site Scripting) payload and execute. This vulnerability is fixed in 2.16.3.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-10-29
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: instantcms

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-10-29 23:15 UTCPublished CVE record published
2026-06-17 08:04 UTCUpdated Record last modified

instantcms instantcms UPGRADE

Affected: < 2.16.3

Fixed in: 2.16.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy instantcms || rpm -q instantcms || instantcms --version

2. UPGRADE to 2.16.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade instantcms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade instantcms

Note

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

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-2024-50348?

instantcms: upgrade to 2.16.3. Exact commands for each OS are on this page.

Is CVE-2024-50348 being exploited?

CVE-2024-50348 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-2024-50348 affect?

CVE-2024-50348 affects instantcms. Severity is medium (CVSS 5.4). InstantCMS is a free and open source content management system. In photo upload function in the photo album page there is no input validation taking place. Due to this attackers are able to inject the XSS (Cross Site Scripting) payload and

How urgent is CVE-2024-50348?

Priority 31/100. Public exploit reference

Related CVEs

CVE-2026-28281 HIGH 7.1 UPGRADE InstantCMS is a free and open source content management system
CVE-2025-59055 MEDIUM 4.7 UPGRADE InstantCMS is a free and open source content management system
CVE-2024-31212 MEDIUM 6.7 DOWNGRADE InstantCMS is a free and open source content management system
CVE-2013-10051 CRITICAL 9.8 UPGRADE A remote PHP code execution vulnerability exists in InstantCMS version 1.6 and earlier due to unsafe use of ev

References

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