CVE-2026-22789: WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry

Routine

MEDIUM 5.4DOWNGRADE

CVE-2026-22789 is a medium-severity flaw (CVSS 5.4) affecting wem. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry. Prior to 1.19, WebErpMesv2 contains a file upload validation bypass vulnerability in multiple controllers that allows authenticated users to upload arbitrary files, including PHP scripts, leading to Remote Code Execution (RCE). This vulnerability is identical in nature to CVE-2025-52130 but exists in different code locations that were not addressed by the or

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-434, CWE-616
Published	2026-01-12
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: wem-project

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

Am I affected?

Timeline

2026-01-12 22:16 UTCPublished CVE record published
2026-06-17 10:20 UTCUpdated Record last modified

wem-project wem DOWNGRADE

Affected: 1.18

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.18

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.18 (Debian / Ubuntu)

apt-cache madison wem sudo apt install wem=<VERSION_BEFORE_1.18> sudo apt-mark hold wem

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

dnf --showduplicates list wem sudo dnf downgrade wem-<VERSION_BEFORE_1.18> sudo dnf versionlock add wem

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-2026-22789?

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

Is CVE-2026-22789 being exploited?

CVE-2026-22789 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-2026-22789 affect?

CVE-2026-22789 affects wem. Severity is medium (CVSS 5.4). WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry. Prior to 1.19, WebErpMesv2 contains a file upload validation bypass vulnerability in multiple controllers that allows authenticated users to upload ar

How urgent is CVE-2026-22789?

Priority 24/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-22788 HIGH 8.2 UPGRADE WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry

References

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