CVE-2026-82838: CWE-80 Improper neutralization of Script-Related HTML tags in a web page (basic XSS) in pretix venueless
Description
CVE-2026-82838 is a medium severity vulnerability in the pretix venueless product where the default docker image did not properly prevent uploaded SVG files from containing executable JavaScript. This issue relates to improper neutralization of script-related HTML tags (CWE-80). A valid Content Security Policy is now set to mitigate this risk. No specific affected versions or patches are currently detailed.
CVSS v4.0
Score 6.4medium
Affected software
pretix
venueless
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-82838 affects the pretix venueless product's default docker image, which failed to ensure that uploaded SVG files could not deliver executable JavaScript content. This is classified as CWE-80, improper neutralization of script-related HTML tags, a basic cross-site scripting (XSS) issue. The vendor has implemented a valid Content Security Policy to address the problem. There is no explicit information on affected versions or available patches, and no known exploits in the wild have been reported.
Potential Impact
The vulnerability allows for the possibility that uploaded SVG files could contain executable JavaScript, potentially leading to cross-site scripting attacks. This could impact users interacting with the affected web pages by executing unauthorized scripts. However, the presence of a valid Content Security Policy reduces the risk of exploitation. No active exploitation has been reported.
Mitigation Recommendations
A valid Content Security Policy has been set to mitigate this vulnerability. There is no explicit vendor advisory or patch information available at this time. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- rami.io
- Date Reserved
- 2026-08-31T07:39:57.951Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a954468acd9273b49d7de26
Added to database: 08/31/2026, 09:07:52 UTC
Last enriched: 09/07/2026, 15:54:41 UTC
Last updated: 10/13/2026, 18:48:24 UTC
Views: 96
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