sproctor php-calendar index.php $_SERVER['PHP_SELF'] cross site scripting

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability, which was classified as problematic, was found in sproctor php-calendar (Calendar Software) (version now known). This affects some unknown processing of the file index.php. The manipulation of the argument $_SERVER['PHP_SELF'] with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity.

The weakness was published 12/13/2022 as a2941109b42201c19733127ced763e270a357809. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2022-4455. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:index.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch a2941109b42201c19733127ced763e270a357809 is able to eliminate this problem. The bugfix is ready for download at github.com.

Similar entries are available at VDB-267091, VDB-267238, VDB-267425 and VDB-267457.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 3.5
CNA Vector (VulDB): 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍


Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: a2941109b42201c19733127ced763e270a357809


12/13/2022 🔍
12/13/2022 +0 days 🔍
12/13/2022 +0 days 🔍
01/07/2023 +25 days 🔍


Advisory: a2941109b42201c19733127ced763e270a357809
Status: Confirmed

CVE: CVE-2022-4455 (🔍)
See also: 🔍


Created: 12/13/2022 05:37 PM
Updated: 01/07/2023 02:48 PM
Changes: 12/13/2022 05:37 PM (42), 01/07/2023 02:44 PM (2), 01/07/2023 02:45 PM (21), 01/07/2023 02:48 PM (1)
Complete: 🔍
Cache ID: 100:E8B:40


No comments yet. Languages: en.

Please log in to comment.

Want to stay up to date on a daily basis?

Enable the mail alert feature now!