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MEDIUM severity

CVE-2025-29746 — koillection

MEDIUM

CVE-2025-29746 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in koillection/koillection. A fix is available for koillection/koillection — see the affected versions and patch details below.

Koillection Cross Site Scripting vulnerability

Also known asGHSA-fxvx-gfmr-5xfj
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-29746.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk+0.00%
Lower risk than most CVEs22th percentile — riskier than 22% of all scored CVEsHighest risk
0.00%0.26%0.53%0.79%0.2%0.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘koillection/koillection

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Cross Site Scripting vulnerability in Koillection v.1.6.10 allows a remote attacker to escalate privileges via the collection, Wishlist and album components

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistkoillection/koillectionall versions1.6.12composer require koillection/koillection:^1.6.12

Affected Products

1 product · 1 configurations
Application
koillectionbenjaminjonard
1 version
1.6.10

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for koillection/koillection, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update koillection/koillection to 1.6.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-29746 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Cross Site Scripting vulnerability in Koillection v.1.6.10 allows a remote attacker to escalate privileges via the collection, Wishlist and album components
O3 Security · Impact-Aware SCA

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CVE-2025-29746: koillection XSS — Fixed in 1.6.12