CVE-2023-27090Public exploitNetwork attack vector

Cookie theft via unfiltered stored article titles

Published Apr 20, 2023 · Updated Feb 5, 2025

Stored cross-site scripting in XiaoBingBy TeaCMS allows remote authenticated users to steal visitor cookies through crafted article titles. The article publishing path stores title text without filtering, and article views render the stored title so embedded script executes in a visitor's browser. Publishing requires ordinary-user access and exploitation requires another user to view the article; the reported consequence is cookie disclosure, with no availability impact.

CVSS severity5.4
Medium
EPSS probability0.43%
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 XiaoBingBy TeaCMS allows remote authenticated users to steal visitor cookies through crafted article titles. The article publishing path stores title text without filtering, and article views render the stored title so embedded script executes in a visitor's browser. Publishing requires ordinary-user access and exploitation requires another user to view the article; the reported consequence is cookie disclosure, with no availability impact.

The record

CVE
CVE-2023-27090
Published
Apr 20, 2023
Updated
Feb 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 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?

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

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4CISA-ADPCVSS: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')
T1539Steal Web Session Cookie

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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