What is CVE-2026-30841?

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 and without calling htmlspecialchars(). This allows reflected XSS by breaking out of the attribute context. This issue has been patched in version 4.6.2.

How severe is CVE-2026-30841?

CVE-2026-30841 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-30841 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30841?

CVE-2026-30841 affects Wallosapp Wallos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30841?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-30841 have an EU (EUVD) identifier?

Yes. CVE-2026-30841 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10121.

When was CVE-2026-30841 published?

CVE-2026-30841 was published on 2026-03-07 and last updated on 2026-06-17.

CVE-2026-30841

CVE-2026-30841 is a medium-severity vulnerability in Wallosapp Wallos with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 6.9
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10121
Weakness: CWE-79
Affected product: Wallosapp Wallos
Published: 2026-03-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-30841?: 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.
How severe is CVE-2026-30841?: CVE-2026-30841 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-30841 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30841?: CVE-2026-30841 affects Wallosapp Wallos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30841?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-30841 have an EU (EUVD) identifier?: Yes. CVE-2026-30841 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10121.
When was CVE-2026-30841 published?: CVE-2026-30841 was published on 2026-03-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wallosapp:wallos:*:*:*:*:*:*:*:*

More vulnerabilities in Wallosapp Wallos

CVE-2024-55372 — Critical (CVSS 9.8): Wallos <=2.38.2 has a file upload vulnerability in the restore database function, which allows unauthenticated users to…
CVE-2024-55371 — Critical (CVSS 9.8): Wallos <= 2.38.2 has a file upload vulnerability in the restore backup function, which allows authenticated users to…
CVE-2026-33407 — Critical (CVSS 9.1): Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, Wallos…
CVE-2026-30840 — High (CVSS 8.8): Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, there is a server-side…
CVE-2024-29320 — High (CVSS 8.1): Wallos before 1.15.3 is vulnerable to SQL Injection via the category and payment parameters to /subscriptions/get.php.
CVE-2026-33399 — High (CVSS 7.7): Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, the SSRF fix applied in…

All CVEs affecting Wallosapp Wallos →

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

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →