CVE-2025-46349Public exploitNetwork attack vector

Victim-context script execution via unescaped file parameter

Published Apr 29, 2025 · Updated Apr 29, 2025

Reflected XSS in YesWiki before 4.5.4 allows remote attackers to execute script in a victim's browser through the file upload form. The showUploadForm method inserts the GET file parameter into a heading and hidden input without HTML encoding. Exploitation requires no authentication but requires a victim to open a crafted link, enabling actions in that victim's YesWiki context.

CVSS severity7.6
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in YesWiki before 4.5.4 allows remote attackers to execute script in a victim's browser through the file upload form. The showUploadForm method inserts the GET file parameter into a heading and hidden input without HTML encoding. Exploitation requires no authentication but requires a victim to open a crafted link, enabling actions in that victim's YesWiki context.

The record

CVE
CVE-2025-46349
Published
Apr 29, 2025
Updated
Apr 29, 2025
Vendor
YesWiki
Product
YesWiki
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

YesWiki · YesWikiversion=< 4.5.4

Published CVSS scores

7.6GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
6.1NIST NVDCVSS: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.

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')
T1204.001User Execution: Malicious Link

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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