CVE-2026-27742
Last modified
CVE-2026-27742 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality. The application performs client-side sanitation of content input but does not enforce equivalent sanitation on the server side. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
Description
Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality. The application performs client-side sanitation of content input but does not enforce equivalent sanitation on the server side. An authenticated user can inject arbitrary JavaScript into the content field of a post, which is stored and later rendered to other users without proper output encoding. When viewed, the injected script executes in the context of the victim’s browser, allowing session hijacking, credential theft, content manipulation, or other actions within the user’s privileges.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bludit | Bludit | < 3.16.2 |
References
- https://github.com/bludit/bludit/issues/1579Exploit, Issue Tracking
- https://www.vulncheck.com/advisories/bludit-stored-xss-in-post-contentThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-27742?
How severe is CVE-2026-27742?
How do I fix CVE-2026-27742?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-27737BigBlueButton is an open-source virtual classroom. In versio…6.5
- CVE-2026-27738The Angular SSR is a server-rise rendering tool for Angular …6.9
- CVE-2026-27739The Angular SSR is a server-rise rendering tool for Angular …9.2
- CVE-2026-2774Integer overflow in the Audio/Video component. This vulnerab…9.8
- CVE-2026-27740Discourse is an open-source discussion platform. Versions pr…6.1
- CVE-2026-27741Bludit version 3.16.1 contains a cross-site request forgery …4.3
- CVE-2026-27743The SPIP referer_spam plugin versions prior to 1.3.0 contain…9.8
- CVE-2026-27744The SPIP tickets plugin versions prior to 4.3.3 contain an u…9.8
- CVE-2026-27745The SPIP interface_traduction_objets plugin versions prior t…8.8
- CVE-2026-27746The SPIP jeux plugin versions prior to 4.1.1 contain a refle…6.1
- CVE-2026-27747The SPIP interface_traduction_objets plugin versions prior t…8.8
- CVE-2026-27748Avira Internet Security contains an improper link resolution…7.1
Are you affected by CVE-2026-27742?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST