CVE-2021-44566
Cross site scripting in francoisjacquet/rosariosis
A Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.
- Record
CVE-2021-44566- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
A Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.
- Record
CVE-2021-44566- Updated
- 2026-11-02
EUVDEUVD-2022-0780 No score
A Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.
- Record
EUVD-2022-0780- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3756-hwhv-qw58
Cross site scripting in francoisjacquet/rosariosis
A Cross Site Scripting vulnerability exists RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.
- Record
GHSA-3756-hwhv-qw58- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
A Cross Site Scripting (XSS) vulnerability exists in RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.
- Record
CVE-2021-44566- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-3756-hwhv-qw58
Cross site scripting in francoisjacquet/rosariosis
A Cross Site Scripting vulnerability exists RosarioSIS before 4.3 via the SanitizeMarkDown function in ProgramFunctions/MarkDownHTML.fnc.php.
- Record
GHSA-3756-hwhv-qw58- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
francoisjacquet/rosariosisPackagist |
before 4.3 | 4.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-44566 is a medium vulnerability (CVSS 5.4) in Rosariosis, published February 22, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. Fixed in francoisjacquet/rosariosis 4.3.
References
gitlab.com/francoisjacquet/rosariosis/-/issues/259
nvd.nist.gov/vuln/detail/CVE-2021-44566
github.com/advisories/GHSA-3756-hwhv-qw58