CVE-2025-55888Public exploitNetwork attack vector

Browser script execution via unsanitized accountName response

Published Sep 22, 2025 · Updated Jul 5, 2026

Cross-site scripting in ARD GEC En Ligne allows remote attackers to execute JavaScript through its Ajax transaction manager endpoint. The endpoint renders the attacker-controlled accountName value from an intercepted Ajax response without sanitizing or encoding it. The attacker must intercept and alter that response; execution in the user's browser can expose cookies and enable session hijacking.

CVSS severity7.3
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in ARD GEC En Ligne allows remote attackers to execute JavaScript through its Ajax transaction manager endpoint. The endpoint renders the attacker-controlled accountName value from an intercepted Ajax response without sanitizing or encoding it. The attacker must intercept and alter that response; execution in the user's browser can expose cookies and enable session hijacking.

The record

CVE
CVE-2025-55888
Published
Sep 22, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 2026Record 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

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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')
T1190Exploit Public-Facing Application

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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