CVE-2025-44998Public exploitNetwork attack vector

Client-side script execution via unvalidated theme setting

Published May 23, 2025 · Updated May 23, 2025

Stored XSS in Tiny File Manager 2.4.7 allows remote attackers to execute JavaScript or HTML via a crafted js-theme-3 value. The settings handler copies js-theme-3 into the persisted theme configuration without validation, and FM_THEME is later emitted unencoded into HTML class attributes. Exploitation requires a modified Settings request and a later page view; the stored payload then runs in a visitor's browser, including on the login screen.

CVSS severity6.1
Medium
EPSS probability0.27%
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 Tiny File Manager 2.4.7 allows remote attackers to execute JavaScript or HTML via a crafted js-theme-3 value. The settings handler copies js-theme-3 into the persisted theme configuration without validation, and FM_THEME is later emitted unencoded into HTML class attributes. Exploitation requires a modified Settings request and a later page view; the stored payload then runs in a visitor's browser, including on the login screen.

The record

CVE
CVE-2025-44998
Published
May 23, 2025
Updated
May 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 23, 2025CVE publishedPublication date reported by the CVE source.
  2. May 23, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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.

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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')
T1189Drive-by Compromise

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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