CVE-2022-25022Public exploitNetwork attack vector

Stored script execution via crafted blog content

Published Mar 1, 2022 · Updated Jul 9, 2026

Stored cross-site scripting in HTMLy 2.8.1 allows remote authenticated users to execute arbitrary web scripts through crafted blog content. The blog-post content field stores attacker-supplied HTML, and the public post view renders the content without neutralizing executable markup. A user able to create a post must plant the payload, and execution requires another user to view that post; the script then acts within the viewer's HTMLy origin.

CVSS severity5.4
Medium
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in HTMLy 2.8.1 allows remote authenticated users to execute arbitrary web scripts through crafted blog content. The blog-post content field stores attacker-supplied HTML, and the public post view renders the content without neutralizing executable markup. A user able to create a post must plant the payload, and execution requires another user to view that post; the script then acts within the viewer's HTMLy origin.

The record

CVE
CVE-2022-25022
Published
Mar 1, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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

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 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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