Medium severity · published Jun 17, 2021
CVE-2021-33557
An XSS issue was discovered in manage_custom_field_edit_page.php in MantisBT before 2.25.2
6.1
CVSS
1.8%
EPSS
No
On KEV
Description
An XSS issue was discovered in manage_custom_field_edit_page.php in MantisBT before 2.25.2. Unescaped output of the return parameter allows an attacker to inject code into a hidden input field.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mantisbt · Mantisbt
before 2.25.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33557
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33557
Release Notes
https://mantisbt.org/blog/archives/mantisbt/699
Exploit
https://mantisbt.org/bugs/view.php?id=28552
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