Multiple cross-site request forgery (CSRF) vulnerabilities in the check_csrftoken function in lib/lib.inc.php in PHProjekt 5.2.0, when magic_quotes_gpc is disabled, allow remote attackers to perform unauthorized actions as an arbitrary user via the (1) Projects, (2) Contacts, (3) Helpdesk, (4) Notes, (5) Search, (6) Mail, or (7) Filemanager module; the (9) summary page; or unspecified other files.
Conclusion & alert: CVE-2007-1638 is rated Moderate Risk (52.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.72%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.07% | 1.72% | -0.34% |
| 2 | 2026-01-01 | 1.68% | 2.07% | +0.39% |
| 3 | 2025-11-09 | — | 1.68% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
high | CVE-2007-1638: 1 GLSA(s) (200706-07), 1 atom(s) (www-apps/phprojekt); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-1638 |
: Successful exploitation requires that variable "magic_quotes_gpc" is disabled.
: Upgrade to version 5.2.1,
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| phpprojekt | phpprojekt | 5.2.0 | cpe:2.3:a:phpprojekt:phpprojekt:5.2.0:*:*:*:*:*:*:* |