VDB
BIT-libphp-2021-21707
BIT-libphp-2021-21707
PUBLISHED
CVSS 5.300000190734863 MEDIUM
Special characters break path parsing in XML functions
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bitnami | libphp | 7.3.0, 7.4.0, 8.0.0 |
Exploit Intelligence
- Exploit for the PHP 8.1.0-dev backdoor vulnerability (CVE-2021-21707) (github-poc-repo)
- Exploit for the PHP 8.1.0-dev backdoor vulnerability (CVE-2021-21707) (github-poc)
- cve_db.json (github-poc)
Timeline
- Aug 11, 2025 CVE Published
- Aug 11, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch
References
- https://bugs.php.net/bug.php?id=79971 url
- https://lists.debian.org/debian-lts-announce/2022/12/msg00030.html url
- https://nvd.nist.gov/vuln/detail/CVE-2021-21707 url
- https://security.netapp.com/advisory/ntap-20211223-0005/ url
- https://www.debian.org/security/2022/dsa-5082 url
- https://www.tenable.com/security/tns-2022-09 url