CVE-2021-44566

Name: CVE-2021-44566
Creator: NVD / NIST
Published: 2022-02-24T15:15:24.15+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2021-44566 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

A Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.70%

48.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Rosariosis	Rosariosis	< 4.3

References

https://gitlab.com/francoisjacquet/rosariosis/-/blob/mobile/CHANGES_V3_4.md#changes-in-43Release Notes, Third Party Advisory
https://gitlab.com/francoisjacquet/rosariosis/-/commit/81886abb45a32e802151660de674f084afaef3aaPatch, Third Party Advisory
https://gitlab.com/francoisjacquet/rosariosis/-/issues/259Exploit, Issue Tracking, Patch, Third Party Advisory
https://gitlab.com/francoisjacquet/rosariosis/-/blob/mobile/CHANGES_V3_4.md#changes-in-43Release Notes, Third Party Advisory
https://gitlab.com/francoisjacquet/rosariosis/-/commit/81886abb45a32e802151660de674f084afaef3aaPatch, Third Party Advisory
https://gitlab.com/francoisjacquet/rosariosis/-/issues/259Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Feb 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44566?

A Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.

How severe is CVE-2021-44566?

CVE-2021-44566 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44566?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44566?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST