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Not in CISA KEV
MEDIUM severity

CVE-2022-4646 — rdiffweb

MEDIUMFix: ikus060/rdiffweb@e6f0d80

CVE-2022-4646 is a medium-severity (CVSS 5.3) Cross-Site Request Forgery (CSRF) vulnerability in rdiffweb. A fix is available for rdiffweb — see the affected versions and patch details below.

Cross-Site Request Forgery (CSRF) in ikus060/rdiffweb

Also known asGHSA-85fp-523q-5xwcPYSEC-2022-43004
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 3, 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-2022-4646.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs28th percentile — riskier than 28% of all scored CVEsHighest risk
0.00%0.28%0.56%0.84%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
🐍rdiffweb

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

Description

Cross-Site Request Forgery (CSRF) in GitHub repository ikus060/rdiffweb prior to 2.5.4.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIrdiffweball versions2.5.4pip install --upgrade 'rdiffweb==2.5.4'

Affected Products

1 product · 1 configurations
Application
rdiffwebikus-soft
< 2.5.4
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update rdiffweb to 2.5.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-4646 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

rdiffweb prior to version 2.5.4 is vulnerable to Cross-Site Request Forgery (CSRF).
O3 Security · Impact-Aware SCA

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CVE-2022-4646: rdiffweb CSRF — Fixed in 2.5.4