CVE-2026-0800Public exploitNetwork attack vectorHinoki check available

Unauthenticated stored XSS via unescaped custom fields

Published Jan 24, 2026 · Updated Jan 24, 2026

Stored XSS in Jeff Starr User Submitted Posts 20251210 and earlier allows remote attackers to inject scripts through custom fields. The front-end submission handler stores custom-field values without sufficient sanitization, and the display path renders them without adequate escaping. No account is required when the submission form is public; the script runs in a user's browser when the injected page is viewed.

CVSS severity7.2
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in Jeff Starr User Submitted Posts 20251210 and earlier allows remote attackers to inject scripts through custom fields. The front-end submission handler stores custom-field values without sufficient sanitization, and the display path renders them without adequate escaping. No account is required when the submission form is public; the script runs in a user's browser when the injected page is viewed.

The record

CVE
CVE-2026-0800
Published
Jan 24, 2026
Updated
Jan 24, 2026
Vendor
Plugin Planet
Product
User Submitted Posts
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 2026Record 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=* <=20251210

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Plugin Planet · User Submitted Postsversion=* <=20251210

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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