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MEDIUM severity

GHSA-wh3w-jcc7-mhmf pretalx

MEDIUMFix: pretalx/pretalx@60722c4

GHSA-wh3w-jcc7-mhmf is a medium-severity (CVSS 6.5) Path Traversal vulnerability in pretalx. 1 public exploit reference exists, so weaponization risk is real. A fix is available for pretalx — see the affected versions and patch details below.

pretalx vulnerable to path traversal in HTML export

Also known asCVE-2023-28459PYSEC-2023-41
Published
Apr 20, 2023
Updated
Oct 21, 2024
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Sep 19, 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 GHSA-wh3w-jcc7-mhmf.

EPSS Exploitation Probability

via FIRST.org ↗
6.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs94th percentile — riskier than 94% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-wh3w-jcc7-mhmf plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
🐍pretalx

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

pretalx before 2.3.2 allows path traversal in HTML export (a non-default feature). Users were able to upload crafted HTML documents that trigger the reading of arbitrary files.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIpretalxall versions2.3.2pip install --upgrade 'pretalx==2.3.2'
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

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

  2. Fix

    Update pretalx to 2.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-wh3w-jcc7-mhmf 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.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-wh3w-jcc7-mhmf can be triaged on real exposure rather than presence alone.

Tailored to GHSA-wh3w-jcc7-mhmf. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

pretalx before 2.3.2 allows path traversal in HTML export (a non-default feature). Users were able to upload crafted HTML documents that trigger the reading of arbitrary files.
O3 Security · Impact-Aware SCA

Is GHSA-wh3w-jcc7-mhmf in your dependencies?

O3 Security finds GHSA-wh3w-jcc7-mhmf across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-wh3w-jcc7-mhmf: pretalx (Medium 6.5) | O3 Security