Public proof of conceptFix available

CVE-2022-28508

Q: Is CVE-2022-28508 actively exploited?

Active exploitation of CVE-2022-28508 has not been confirmed. Its EPSS score was 5.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-28508?

CVE-2022-28508 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

A public proof of concept exists; no exploitation attested.

Published2022-05-04
Fixed in2.25.2
WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An XSS issue was discovered in browser_search_plugin.php in MantisBT before 2.25.2. Unescaped output of the return parameter allows an attacker to inject code into a hidden input field.

Timeline

dates in UTC

2022-05-0414:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-28508?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-28508?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Mantisbt

Branch	Affected	Fixed in	Source
2.25	< 2.25.2	2.25.2	NVD

mantisbt/mantisbt

Branch	Affected	Fixed in	Source
2.25	≤ 2.25.2	no fix published	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Mantisbt to 2.25.2

Advisories and patches

mantisbt.orgVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedYSah44/CVE-2022-28508

Sources

NVDCVSS 3.16.1read 2026-10-23
NVDCVSS 2.04.3read 2026-10-23
NVDweakness (CWE)CWE-79read 2026-10-23
FIRST EPSSEPSS score5.2 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published: 2022-05-04
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-28508?

An XSS issue was discovered in browser_search_plugin.php in MantisBT before 2.25.2. Unescaped output of the return parameter allows an attacker to inject code into a hidden input field.

Is CVE-2022-28508 actively exploited?

Active exploitation of CVE-2022-28508 has not been confirmed. Its EPSS score was 5.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-28508?

CVE-2022-28508 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

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