CVE-2026-89051Network attack vectorHinoki check available

Stored XSS via unsanitized replaceHeadersAndTags output

Published Oct 16, 2026 · Updated Oct 16, 2026

Stored XSS in Squirrly Limited WP Ghost 7.0.12 and earlier allows remote attackers to execute scripts through injected links. The replaceHeadersAndTags function processes attacker-controlled content without sufficient sanitization or output escaping. Injection requires no authentication, but script execution in a visiting browser requires a user to click the injected link.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored XSS in Squirrly Limited WP Ghost 7.0.12 and earlier allows remote attackers to execute scripts through injected links. The replaceHeadersAndTags function processes attacker-controlled content without sufficient sanitization or output escaping. Injection requires no authentication, but script execution in a visiting browser requires a user to click the injected link.

The record

CVE
CVE-2026-89051
Published
Oct 16, 2026
Updated
Oct 16, 2026
Vendor
Squirrly Limited
Product
WP Ghost
Classifications
T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 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=0 <=7.0.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Squirrly Limited · WP Ghostversion=0 <=7.0.12

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

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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