CVE-2025-15094Public exploitNetwork attack vector

Reflected XSS via unencoded login redirect URL

Published Dec 26, 2025 · Updated Dec 26, 2025

Reflected XSS in sunkaifei FlyCms allows remote attackers to execute script through the login endpoint's redirectUrl parameter. The userLogin method copies redirectUrl into the login view model without encoding it, causing attacker-supplied markup to enter the rendered page. Commit abbaa5a8daefb146ad4d61027035026b052cb414 is affected, and exploitation requires a victim to open a crafted URL; injected script runs in the FlyCms origin.

CVSS severity4.3
Medium
EPSS probability0.40%
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 sunkaifei FlyCms allows remote attackers to execute script through the login endpoint's redirectUrl parameter. The userLogin method copies redirectUrl into the login view model without encoding it, causing attacker-supplied markup to enter the rendered page. Commit abbaa5a8daefb146ad4d61027035026b052cb414 is affected, and exploitation requires a victim to open a crafted URL; injected script runs in the FlyCms origin.

The record

CVE
CVE-2025-15094
Published
Dec 26, 2025
Updated
Dec 26, 2025
Vendor
FlyCms Project
Product
FlyCms
Classifications
CWE-94, CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 26, 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?

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

  1. Affected versionversion=abbaa5a8daefb146ad4d61027035026b052cb414

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FlyCms Project · FlyCmsversion=abbaa5a8daefb146ad4d61027035026b052cb414

Published CVSS scores

5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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.

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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-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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