RCE in Rebuild
CVE-2025-11276
A security flaw has been discovered in Rebuild up to 4.1.3. Affected by this issue is some unknown functionality of the component Comment/Guestbook. Performing manipulation results in cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 4.1.4 can resolve this issue. It is suggested to upgrade the affected component. According to the researcher the vendor has confirmed the flaw and fix in a private issue response.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (15.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000
Affected products
- Rebuild — versions 4.1.0, 4.1.1, 4.1.2
Weakness classification (CWE)
References
- vuldb.com/ (vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- gitee.com/getrebuild/rebuild/releases/tag/4.1.4 (patch)
Frequently asked questions
- What is CVE-2025-11276?
- CVE-2025-11276 is a low-severity vulnerability in Rebuild, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2025-10-05.
- How severe is CVE-2025-11276?
- Low severity. CVSS v3 base score is 3.5 out of 10.