XSS in Timeclock PHP
CVE-2021-47967
PHP Timeclock 1.04 contains multiple cross-site scripting vulnerabilities that allow unauthenticated attackers to inject arbitrary JavaScript by manipulating URL paths and POST parameters. Attackers can append malicious payloads to login.php, timeclock.php, audit.php, and timerpt.php endpoints, or inject code through from_date and to_date parameters in report requests to execute scripts in user browsers.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (10.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.2% 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: 0.002 · change: 0.000
Affected products
- Timeclock PHP — versions 1.04
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49853 (exploit)
- timeclock.sourceforge.net (product)
- sourceforge.net/projects/timeclock/files/PHP Timeclock/PHP Timeclock 1.04/ (product)
- www.vulncheck.com/advisories/php-timeclock-multiple-cross-site-scripting-via-pa… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47967?
- CVE-2021-47967 is a medium-severity vulnerability in Timeclock PHP, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-15.
- How severe is CVE-2021-47967?
- Medium severity. CVSS v3 base score is 6.1 out of 10.