CVE-2021-24581Public exploitNetwork attack vector

Stored XSS via forged Logo Title update

Published Aug 30, 2021 · Updated Aug 3, 2024

Stored XSS in Linesh Jose Blue Admin 21.06.01 and earlier allows remote attackers to execute script via a forged settings request. The plugin saves the Logo Title setting without a CSRF check, then outputs its value in a page without sanitization or escaping. An authenticated administrator must be induced to submit the forged request; the payload runs when the affected page is viewed.

CVSS severity8.8
High
EPSS probability4.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Linesh Jose Blue Admin 21.06.01 and earlier allows remote attackers to execute script via a forged settings request. The plugin saves the Logo Title setting without a CSRF check, then outputs its value in a page without sanitization or escaping. An authenticated administrator must be induced to submit the forged request; the payload runs when the affected page is viewed.

The record

CVE
CVE-2021-24581
Published
Aug 30, 2021
Updated
Aug 3, 2024
Vendor
Linesh Jose
Product
Blue Admin
Classifications
CWE-79, CWE-352, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=21.06.01 <=21.06.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Linesh Jose · Blue Adminversion=21.06.01 <=21.06.01

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-352Cross-Site Request Forgery (CSRF)
T1059.007JavaScript/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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