CVE-2022-50939: e107 CMS version 3.2.1 contains a critical file upload vulnerability that allows authenticated administrators

This month

HIGH 7.2DOWNGRADE

CVE-2022-50939 is a high-severity flaw (CVSS 7.2) affecting e107. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

e107 CMS version 3.2.1 contains a critical file upload vulnerability that allows authenticated administrators to override arbitrary server files through path traversal. The vulnerability exists in the Media Manager's remote URL upload functionality (image.php) where the upload_caption parameter is not properly sanitized. An attacker with administrative privileges can use directory traversal sequences (../../../) in the upload_caption field to ove

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-22, CWE-434
Published	2026-01-13
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: e107

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

Am I affected?

Timeline

2026-01-13 23:15 UTCPublished CVE record published
2026-06-17 05:24 UTCUpdated Record last modified

e107 e107 DOWNGRADE

Affected: 3.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.1

1. Check installed version

apt-cache policy e107 || rpm -q e107 || e107 --version

2. No fixed release: DOWNGRADE to a release before 3.2.1 (Debian / Ubuntu)

apt-cache madison e107 sudo apt install e107=<VERSION_BEFORE_3.2.1> sudo apt-mark hold e107

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

dnf --showduplicates list e107 sudo dnf downgrade e107-<VERSION_BEFORE_3.2.1> sudo dnf versionlock add e107

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-2022-50939?

e107: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-50939 being exploited?

CVE-2022-50939 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-2022-50939 affect?

CVE-2022-50939 affects e107. Severity is high (CVSS 7.2). e107 CMS version 3.2.1 contains a critical file upload vulnerability that allows authenticated administrators to override arbitrary server files through path traversal. The vulnerability exists in the Media Manager's remote URL upload funct

How urgent is CVE-2022-50939?

Priority 48/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-11941 MEDIUM 5.4 UPGRADE A vulnerability was detected in e107 CMS up to 2.3.3
CVE-2025-61505 MEDIUM 6.5 UPGRADE e107 CMS thru 2.3.3 are vulnerable to insecure deserialization in the `install.php` script
CVE-2022-50916 HIGH 7.2 DOWNGRADE e107 CMS version 3.2.1 contains a file upload vulnerability that allows authenticated administrators to overri
CVE-2022-50907 HIGH 7.2 DOWNGRADE e107 CMS version 3.2.1 contains a file upload vulnerability that allows authenticated administrative users to
CVE-2022-50906 MEDIUM 4.8 DOWNGRADE e107 CMS 3.2.1 contains an upload restriction bypass vulnerability that allows authenticated administrators to

References

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