What is the CVSS score of CVE-2026-0521?

CVE-2026-0521 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Map are affected by CVE-2026-0521?

CVE-2026-0521 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

Is there a public PoC exploit available for CVE-2026-0521?

Yes, a public proof-of-concept exploit is available for CVE-2026-0521. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-0521?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Map CVE-2026-0521

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-02-06 vulnerability@ncsc.ch

XSS Map

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 18, 2026 - 17:43 vuln.today

Public exploit code

CVE Published

Feb 06, 2026 - 07:16 nvd

MEDIUM 6.1

DescriptionCVE.org

A reflected cross-site scripting (XSS) vulnerability in the PDF export functionality of the TYDAC AG MAP+ solution allows unauthenticated attackers to craft a malicious URL, that if visited by a victim, will execute arbitrary JavaScript in the victim's context. Such a URL could be delivered through various means, for instance, by sending a link or by tricking victims to visit a page crafted by the attacker.

This issue was verified in MAP+: 3.4.0.

AnalysisAI

Reflected XSS in TYDAC AG MAP+ 3.4.0 PDF export allows unauthenticated attackers to execute arbitrary JavaScript in victim browsers through malicious URLs, with public exploit code available. An attacker can deliver such links via email or social engineering to compromise user sessions and steal sensitive data. …

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Vulnerability AssessmentAI

Risk Assessment	CVSS 6.1 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker without authentication could exploit this vulnerability to craft a malicious URL, that if visited by a victim, will execute arbitrary JavaS.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …

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CVE-2026-0521 vulnerability details – vuln.today

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