What is the CVSS score of CVE-2026-30841?

CVE-2026-30841 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 PHP are affected by CVE-2026-30841?

Organizations using Wallos should be aware of moderate risk from CVE-2026-30841, a cross-site scripting vulnerability rated CVSS 6.1.. A patch is available.

Is there a public PoC exploit available for CVE-2026-30841?

Yes, a public proof-of-concept exploit is available for CVE-2026-30841. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-30841?

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

PHP CVE-2026-30841

MEDIUM

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

2026-03-07 security-advisories@github.com

PHP XSS Wallos

6.1

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.1 MEDIUM

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

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 - 21:55 vuln.today

PoC Detected

Mar 11, 2026 - 18:08 vuln.today

Public exploit code

Patch released

Mar 11, 2026 - 18:08 nvd

Patch available

CVE Published

Mar 07, 2026 - 06:16 nvd

MEDIUM 6.1

DescriptionGitHub Advisory

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, passwordreset.php outputs $_GET["token"] and $_GET["email"] directly into HTML input value attributes using <?= $token ?> and <?= $email ?> without calling htmlspecialchars(). This allows reflected XSS by breaking out of the attribute context. This issue has been patched in version 4.6.2.

AnalysisAI

Reflected cross-site scripting (XSS) in Wallos password reset functionality before version 4.6.2 allows unauthenticated attackers to inject malicious scripts by manipulating token and email parameters that are output without sanitization. Public exploit code exists for this vulnerability, affecting self-hosted instances of Wallos. A patch is available in version 4.6.2 and later.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Wallos. Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, passwordreset.php outputs $_GET["token"] and $_GET["email"] directly into HTML input value attributes using <?= $token ?> and <?= $email ?> without calling htmlspecialchars(). This allows reflected XSS by breaking out of the attribute context. This issue has been patched in version 4.6.2.

RemediationAI

A vendor patch is available — apply it immediately. Fixed in version 4.6.2.. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.