CVE-2026-40353: wger is a free, open-source workout and fitness manager

Q: How do I fix CVE-2026-40353?

wger: upgrade to 2.5. Exact commands for each OS are on this page.

Q: Is CVE-2026-40353 being exploited?

CVE-2026-40353 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-2026-40353 affect?

CVE-2026-40353 affects wger. Severity is medium (CVSS 5.4). wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the attribution_link property in AbstractLicenseModel constructs HTML by directly interpolating user-controlled license fields (such as license_author) with

Q: How urgent is CVE-2026-40353?

Priority 27/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2026-40353 is a medium-severity flaw (CVSS 5.4) affecting wger. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the attribution_link property in AbstractLicenseModel constructs HTML by directly interpolating user-controlled license fields (such as license_author) without escaping, and templates render the result using Django's |safe filter. An authenticated user can create an ingredient with a malicious license_author value containing JavaScript, which executes in the brows

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	0.2% (top 89%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-04-17
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2026-04-17 22:16 UTCPublished CVE record published
2026-06-17 10:45 UTCUpdated Record last modified

wger wger UPGRADE

Affected: < 2.5

Fixed in: 2.5

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.5 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wger

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-2026-40353?

wger: upgrade to 2.5. Exact commands for each OS are on this page.

Is CVE-2026-40353 being exploited?

CVE-2026-40353 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-2026-40353 affect?

CVE-2026-40353 affects wger. Severity is medium (CVSS 5.4). wger is a free, open-source workout and fitness manager. In versions 2.5 and below, the attribution_link property in AbstractLicenseModel constructs HTML by directly interpolating user-controlled license fields (such as license_author) with

How urgent is CVE-2026-40353?

Priority 27/100. Public exploit reference

Software pages

Django vulnerabilities

Related CVEs

CVE-2026-40474 HIGH 7.6 UPGRADE wger is a free, open-source workout and fitness manager
CVE-2026-27839 MEDIUM 4.3 UPGRADE wger is a free, open-source workout and fitness manager
CVE-2026-27838 LOW 3.1 UPGRADE wger is a free, open-source workout and fitness manager
CVE-2026-27835 MEDIUM 4.3 UPGRADE wger is a free, open-source workout and fitness manager

References

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