TI-2026-30299 Aliases CVE-2026-41897 GHSA-j7v9-f46r-2rp4

MantisBT: Reflected XSS in Rendering Dynamic Custom Textarea Field

LOW 24CWE-79Published 2026-05-28 · Updated 2026-05-30

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Mantis Bug Tracker (MantisBT) is an open source issue tracker. From 1.0.0 to 2.28.1, lack of validation of filter_target parameter on return_dynamic_filters.php (normally used as an AJAX in View Issues Page) allows an attacker to inject arbitrary HTML if the target is a TEXTAREA custom field. This vulnerability is fixed in 2.28.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00281 20th percentileScored 2026-11-07

Fix Fixed mantisbt (mantisbt): 2.28.2mantisbt/mantisbt (Packagist): 2.28.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
mantisbt	mantisbt	1.0.0 to before 2.28.2	2.28.2	Patch available	CNA
—	mantisbt/mantisbt (Packagist)	1.0.0 to before 2.28.2	2.28.2	Patch available	GHSA-j7v9-f46r-2rp4

mantisbt Vendormantisbt Affected 1.0.0 to before 2.28.2 Fixed in 2.28.2 Patch available CNA
mantisbt/mantisbt (Packagist) Vendor— Affected 1.0.0 to before 2.28.2 Fixed in 2.28.2 Patch available GHSA-j7v9-f46r-2rp4

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:mantisbt:mantisbt::::::::	—	—	mantisbt

cpe:2.3:a:mantisbt:mantisbt:*:*:*:*:*:*:*:* Versions — — ·mantisbt

Remediation

Fix · CNA mantisbt (mantisbt) Fixed in 2.28.2
Fix · GHSA-j7v9-f46r-2rp4 mantisbt/mantisbt (Packagist) Fixed in 2.28.2 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-41897
2026-10-03 Alias added: GHSA-j7v9-f46r-2rp4

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-41897

Other 4

TI-2017-05251 MantisBT through 2.3.0 allows arbitrary password reset and unauthenticated admin access… CVSS 3.1HIGH 8.8
TI-2026-29334 MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page CVSS 4.0MEDIUM 6.9
TI-2014-05966 The XmlImportExport plugin in MantisBT 1.2.17 and earlier allows remote attackers to… CVSS 2.0HIGH 7.5
TI-2026-27192 MantisBT Bugnote Revision Page Leaks Private Issue Metadata After Issue Access Is Revoked CVSS 4.0MEDIUM 5.3
TI-2026-25495 MantisBT: Authorization Bypass in Global Profile Creation CVSS 4.0MEDIUM 5.3
TI-2026-26676 MantisBT: Privilege Escalation from Manager to Administrator CVSS 4.0MEDIUM 5.1

See all 144 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences