CVE-2025-13730Network attack vectorHinoki check available

Stored XSS via unescaped shortcode authentication URL

Published Dec 18, 2025 · Updated Dec 18, 2025

Stored XSS in Jonathan Daggerhart OpenID Connect Generic Client 3.10.0 and earlier allows remote authenticated users to inject scripts. The openid_connect_generic_auth_url callback accepts attacker-controlled endpoint_login and other shortcode attributes, interpolates them into an authentication URL, and returns that URL without output escaping. Contributor-level access is sufficient to store the shortcode in a post; rendering that post executes the injected script in a visitor's browser.

CVSS severity6.4
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in Jonathan Daggerhart OpenID Connect Generic Client 3.10.0 and earlier allows remote authenticated users to inject scripts. The openid_connect_generic_auth_url callback accepts attacker-controlled endpoint_login and other shortcode attributes, interpolates them into an authentication URL, and returns that URL without output escaping. Contributor-level access is sufficient to store the shortcode in a post; rendering that post executes the injected script in a visitor's browser.

The record

CVE
CVE-2025-13730
Published
Dec 18, 2025
Updated
Dec 18, 2025
Vendor
Jonathan Daggerhart
Product
OpenID Connect Generic Client
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 18, 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=* <=3.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jonathan Daggerhart · OpenID Connect Generic Clientversion=* <=3.10.0

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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