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Not in CISA KEV
MEDIUM severity

CVE-2018-25157 — phraseanet

MEDIUM

CVE-2018-25157 is a medium-severity (CVSS 6.4) Cross-site Scripting (XSS) vulnerability in phraseanet/phraseanet. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Phraseanet vulnerable to stored cross-site scripting through crafted file names

Published
Updated
Affected
1 pkg
Patched
None yet
Exploits
None indexed
Exploitation data as of Nov 10, 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-2018-25157.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk-0.00%
Lower risk than most CVEs20th percentile — riskier than 20% of all scored CVEsHighest risk
0.00%0.26%0.52%0.78%0.0%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
🐘phraseanet/phraseanet

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

Phraseanet 4.0.3 contains a stored cross-site scripting vulnerability that allows authenticated users to inject malicious scripts through crafted file names during document uploads. Attackers can upload files with embedded SVG scripts that execute in the browser, potentially stealing cookies or redirecting users when the file is viewed.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘Packagistphraseanet/phraseanetall versionsNo fix

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Remediation status

    The records we use list no patched version of phraseanet/phraseanet for CVE-2018-25157. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    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

Phraseanet 4.0.3 contains a stored cross-site scripting vulnerability that allows authenticated users to inject malicious scripts through crafted file names during document uploads. Attackers can upload files with embedded SVG scripts that execute in the browser, potentially stealing cookies or redirecting users when the file is viewed.
O3 Security · Impact-Aware SCA

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CVE-2018-25157: phraseanet XSS (Medium 6.4)