PT-2026-34723 · Pretalx · Pretalx

Elad Meged · Published 2026-04-18 · Updated 2026-06-02 · CVE-2026-41241

Positive Technologies (AI Summary)

CVSS v3.1

8.7

High

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions pretalx versions prior to 2026.1.0

Description The organiser search in the backend renders submission titles, speaker display names, and user names or emails into the result dropdown using innerHTML string interpolation. This allows a user who controls these fields to inject HTML or JavaScript that executes in the browser of an organiser when a search query matches the malicious record.

Recommendations Update to version 2026.1.0.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-41241

GHSA-CJCX-JFP2-F7M2

PYSEC-2026-108

Affected Products

Pretalx

References · 12

• https://github.com/pretalx/pretalx/security/advisories/GHSA-cjcx-jfp2-f7m2 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2026-108 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-cjcx-jfp2-f7m2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41241 · Security Note
• https://github.com/pretalx/pretalx · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/pretalx/PYSEC-2026-108.yaml · Note
• https://reddit.com/r/pwnhub/comments/1ttwpdc/zeroclick_vulnerability_in_pretalx_exposes · Reddit Post
• https://twitter.com/CVEnew/status/2047428088162906165 · Twitter Post
• https://twitter.com/TweetThreatNews/status/2059805631125537059 · Twitter Post
• https://twitter.com/UndercodeNews/status/2059979402402779467 · Twitter Post
• https://twitter.com/cybernewslive/status/2061677455148990885 · Twitter Post
• https://twitter.com/cybernewslive/status/2059872850404675810 · Twitter Post