CVE-2026-27627 (GCVE-0-2026-27627)
Vulnerability from cvelistv5 – Published: 2026-02-25 03:48 – Updated: 2026-02-25 21:20
VLAI
EPSS
VEX
Title
Karakeep's Reddit plugin content bypasses DOMPurify sanitization, enabling stored XSS
Summary
Karakeep is a elf-hostable bookmark-everything app. In version 0.30.0, when the Reddit metascraper plugin returns `readableContentHtml`, the HTML parsing subprocess uses it directly without running it through DOMPurify. Every other content source in the crawler goes through Readability + DOMPurify, but the Reddit path skips both. Since this content ends up in `dangerouslySetInnerHTML` in the reader view, any malicious HTML in the Reddit response gets executed in the user's browser. Version 0.31.0 contains a patch for this issue.
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-25 21:19 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/karakeep-app/karakeep/security… | x_refsource_CONFIRM |
| https://github.com/karakeep-app/karakeep/commit/b… | x_refsource_MISC |
| https://github.com/karakeep-app/karakeep/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| karakeep-app | karakeep |
Affected:
= 0.30.0
|
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