CVE-2025-45755Public exploitNetwork attack vector

Session hijacking via unsanitized imported service names

Published May 21, 2025 · Updated May 21, 2025

Stored XSS in Vtiger CRM Open Source Edition 8.3.0 allows remote authenticated users to execute JavaScript through a Services CSV import. The Services import maps a crafted CSV value into the Service Name field and stores it without adequate neutralization for later page output. Opening the imported service record triggers the payload in the viewer's browser, exposing non-HttpOnly session cookies to script access.

CVSS severity6.1
Medium
EPSS probability0.29%
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 Vtiger CRM Open Source Edition 8.3.0 allows remote authenticated users to execute JavaScript through a Services CSV import. The Services import maps a crafted CSV value into the Service Name field and stores it without adequate neutralization for later page output. Opening the imported service record triggers the payload in the viewer's browser, exposing non-HttpOnly session cookies to script access.

The record

CVE
CVE-2025-45755
Published
May 21, 2025
Updated
May 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 21, 2025CVE publishedPublication date reported by the CVE source.
  2. May 21, 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 privilegesauthenticated

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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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