Vulnerability in Brefphp Bref
CVE-2024-24753
Bref enable serverless PHP on AWS Lambda. When Bref is used in combination with an API Gateway with the v2 format, it does not handle multiple values headers. If PHP generates a response with two headers having the same key but different values only the latest one is kept. If an application relies on multiple headers with the same key being set for security reasons, then Bref would lower the application security. For example, if an application sets multiple `Content-Security-Policy` headers, then Bref would just reflect the latest one. This vulnerability is patched in 2.1.13.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Brefphp Bref — versions < 2.1.13
- Mnapoli Bref
Weakness classification (CWE)
References
- github.com/brefphp/bref/security/advisories/GHSA-99f9-gv72-fw9r (Exploit, Vendor Advisory)
- github.com/brefphp/bref/commit/f834027aaf88b3885f4aa8edf6944ae920daf2dc (Patch)
Frequently asked questions
- What is CVE-2024-24753?
- CVE-2024-24753 is a medium-severity vulnerability in Brefphp Bref, classified under CWE-436. CVSS score: 4.8/10. Published 2024-02-01.
- How severe is CVE-2024-24753?
- Medium severity. CVSS v3 base score is 4.8 out of 10.