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Fencer Vulns
medium 6.5

CVE-2023-28459 json

pretalx vulnerable to path traversal in HTML export

published 2023-04-20 3 y ago modified 2026-06-17 4 mo ago also GHSA-wh3w-jcc7-mhmf , PYSEC-2023-41 , EUVD-2023-0206

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
6.6%
EPSS 6.6% chance of exploitation in 30 days, percentile 93%
public exploits
1
Metasploit

Summary

pretalx 2.3.1 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.

Patch / fix

Timeline

  1. First public exploit (Metasploit auxiliary/scanner/http/pretalx_file_read_cve_2023_28459)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

6.65% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
pypi pretalx
<2.3.2
>=2.3.1, <2.3.2
2.3.2

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.