CVE-2026-48540: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in krayin laravel-crm
Krayin CRM through 2.2.6 contains a stored client-side template injection vulnerability that allows authenticated attackers to execute arbitrary JavaScript in other users' browsers by injecting Vue.js template expressions into the lead title field. Attackers can craft a lead title containing double-brace template syntax that reaches the Vue template compiler, enabling prototype chain traversal to retrieve the Function constructor and execute attacker-supplied JavaScript in the application origin for every user who views the affected lead record.
AI Analysis
Technical Summary
CVE-2026-48540 is a stored client-side template injection vulnerability in Krayin laravel-crm through version 2.2.6. It arises from improper neutralization of input during web page generation, specifically in the lead title field. Authenticated attackers can inject Vue.js double-brace template syntax that is processed by the Vue template compiler, enabling prototype chain traversal to retrieve the Function constructor and execute arbitrary JavaScript in the context of the application origin for any user viewing the lead record.
Potential Impact
Successful exploitation allows authenticated attackers to execute arbitrary JavaScript in other users' browsers when they view the compromised lead record. This can lead to unauthorized actions performed in the context of the victim user, potentially compromising user data or session integrity. The vulnerability requires authentication and user interaction (viewing the lead), limiting its scope. No known exploits in the wild have been reported.
Mitigation Recommendations
No vendor advisory or patch information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict access to trusted users and monitor for suspicious activity related to lead title inputs. Avoid exposing lead records to untrusted users.
CVE-2026-48540: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in krayin laravel-crm
Description
Krayin CRM through 2.2.6 contains a stored client-side template injection vulnerability that allows authenticated attackers to execute arbitrary JavaScript in other users' browsers by injecting Vue.js template expressions into the lead title field. Attackers can craft a lead title containing double-brace template syntax that reaches the Vue template compiler, enabling prototype chain traversal to retrieve the Function constructor and execute attacker-supplied JavaScript in the application origin for every user who views the affected lead record.
CVSS v4.0
Score 5.1medium
Affected software
krayin
laravel-crm
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-48540 is a stored client-side template injection vulnerability in Krayin laravel-crm through version 2.2.6. It arises from improper neutralization of input during web page generation, specifically in the lead title field. Authenticated attackers can inject Vue.js double-brace template syntax that is processed by the Vue template compiler, enabling prototype chain traversal to retrieve the Function constructor and execute arbitrary JavaScript in the context of the application origin for any user viewing the lead record.
Potential Impact
Successful exploitation allows authenticated attackers to execute arbitrary JavaScript in other users' browsers when they view the compromised lead record. This can lead to unauthorized actions performed in the context of the victim user, potentially compromising user data or session integrity. The vulnerability requires authentication and user interaction (viewing the lead), limiting its scope. No known exploits in the wild have been reported.
Mitigation Recommendations
No vendor advisory or patch information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict access to trusted users and monitor for suspicious activity related to lead title inputs. Avoid exposing lead records to untrusted users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-05-21T18:34:46.417Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab57b0af7a7c54106c05cac
Added to database: 09/24/2026, 19:33:30 UTC
Last enriched: 09/24/2026, 19:48:13 UTC
Last updated: 09/25/2026, 01:55:59 UTC
Views: 7
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