PHP Timeclock 1.04 POST Parameter login.php from_date/to_date cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in PHP Timeclock 1.04. This issue affects some unknown processing of the file login.php of the component POST Parameter Handler. This manipulation of the argument from_date/to_date causes cross site scripting. This vulnerability is registered as CVE-2021-47967. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability has been found in PHP Timeclock 1.04 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file login.php of the component POST Parameter Handler. The manipulation of the argument from_date/to_date with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

The weakness was published by Tyler Butler as 49853. The advisory is shared at exploit-db.com. This vulnerability is known as CVE-2021-47967 since 05/15/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:login.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49853). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Programming Language Software

Name

• PHP Timeclock

Version

• 1.04

License

• open-source

CPE 2.3info

• 🔒

CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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