CVE-2025-13365Network attack vector

Stored XSS via nonce-free settings update

Published Dec 20, 2025 · Updated Dec 20, 2025

Cross-site request forgery in WP Hallo Welt 1.4 and earlier allows remote attackers to inject stored web scripts via forged settings requests. The hallo_welt_seite function accepts settings updates without valid nonce verification and stores input without sufficient sanitization or output escaping. Exploitation requires an authenticated site administrator to act on attacker-controlled content, after which the stored script executes in affected administrative views.

CVSS severity6.1
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in WP Hallo Welt 1.4 and earlier allows remote attackers to inject stored web scripts via forged settings requests. The hallo_welt_seite function accepts settings updates without valid nonce verification and stores input without sufficient sanitization or output escaping. Exploitation requires an authenticated site administrator to act on attacker-controlled content, after which the stored script executes in affected administrative views.

The record

CVE
CVE-2025-13365
Published
Dec 20, 2025
Updated
Dec 20, 2025
Vendor
Franz Wieser
Product
WP Hallo Welt
Classifications
CWE-352, CAPEC-62, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=1.4.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Franz Wieser · WP Hallo Weltversion=* <=1.4.

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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