← Vulnerability feed

Vulnerability record · CVE-2014-4172 · published 24 January 2020

CVE-2014-4172: Apereo .net cas client injection vulnerability

Apereo · .Net Cas Client

A URL parameter injection vulnerability was found in the back-channel ticket validation step of the CAS protocol in Jasig Java CAS Client before 3.3.2, .NET CAS Client before 1.0.2, and phpCAS before 1.3.3 that allow remote attackers to inject arbitrary web script or HTML via the (1) service parameter to validation/AbstractUrlBasedTicketValidator.java or (2) pgtUrl parameter to validation/Cas20ServiceTicketValidator.java.

9.8 CVSS 3.1 Critical EPSS 6.1% · top 6.9% CWE-74 · Injection
9.8CVSS 3.1 base score, v2 7.5
6.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

Description

A URL parameter injection vulnerability was found in the back-channel ticket validation step of the CAS protocol in Jasig Java CAS Client before 3.3.2, .NET CAS Client before 1.0.2, and phpCAS before 1.3.3 that allow remote attackers to inject arbitrary web script or HTML via the (1) service parameter to validation/AbstractUrlBasedTicketValidator.java or (2) pgtUrl parameter to validation/Cas20ServiceTicketValidator.java.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.html Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1131350 Issue TrackingThird Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/95673 Third Party AdvisoryVDB Entry
https://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8d PatchThird Party Advisory
https://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814 PatchThird Party Advisory
https://github.com/Jasig/phpCAS/blob/master/docs/ChangeLog Release NotesThird Party Advisory
https://github.com/Jasig/phpCAS/pull/125 Third Party Advisory
https://issues.jasig.org/browse/CASC-228 Third Party Advisory
https://www.debian.org/security/2014/dsa-3017.en.html Third Party Advisory
https://www.mail-archive.com/cas-user%40lists.jasig.org/msg17338.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.html Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1131350 Issue TrackingThird Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/95673 Third Party AdvisoryVDB Entry
https://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8d PatchThird Party Advisory
https://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814 PatchThird Party Advisory
https://github.com/Jasig/phpCAS/blob/master/docs/ChangeLog Release NotesThird Party Advisory
https://github.com/Jasig/phpCAS/pull/125 Third Party Advisory
https://issues.jasig.org/browse/CASC-228 Third Party Advisory
https://www.debian.org/security/2014/dsa-3017.en.html Third Party Advisory
https://www.mail-archive.com/cas-user%40lists.jasig.org/msg17338.html

Track CVE-2014-4172 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2025-32433Erlang/OTP SSH server missing authentication allows remote code executionErlang/OTP SSH servers before OTP-27.3.3, OTP-26.2.5.11 and OTP-25.3.2.20 mishandle SSH protocol messages, letting an unauthenticated attacker execut…KEVEPSS 99%analysed10.0CVE-2025-24201Apple WebKit out-of-bounds write allows sandbox escapeCVE-2025-24201 is an out-of-bounds write in Apple's WebKit that was addressed with improved checks. Maliciously crafted web content may break out of …KEVEPSS 3.8%analysed10.0CVE-2021-44228Apache Log4j2 JNDI lookup remote code executionApache Log4j2 versions 2.0-beta9 through 2.15.0 (excluding 2.12.2, 2.12.3, and 2.3.1) do not protect against attacker-controlled LDAP and other JNDI …KEVEPSS 100%analysed9.8CVE-2026-24061GNU Inetutils telnetd argument injection allows remote auth bypasstelnetd in GNU Inetutils through 2.7 fails to sanitize the USER environment variable, so a value such as "-f root" is passed as an argument to login …KEVEPSS 99%analysed9.8CVE-2025-39682Linux kernel TLS zero-length record handling flaw on rx_listThe Linux kernel TLS receive path mishandles zero-length records that arrive from the rx_list, breaking the assumption that a record type change cann…KEVEPSS 2.9%analysed9.8CVE-2025-24813Apache Tomcat Default Servlet path equivalence enables RCE and file disclosureApache Tomcat mishandles path equivalence for names containing an internal dot, letting a remote unauthenticated attacker write files through the Def…KEVEPSS 100%analysed9.8CVE-2024-9680Mozilla Firefox and Thunderbird use-after-free in Animation timelinesA use-after-free flaw in Animation timelines allows an attacker to execute code in the content process of Firefox and Thunderbird. Mozilla reports ex…KEVEPSS 23%analysed9.8CVE-2024-4577PHP-CGI on Windows argument injection leads to remote code executionPHP-CGI on Windows can misinterpret characters in the command line passed to Win32 API functions when certain code pages are configured, due to Windo…KEVEPSS 100%analysed

Source: NIST National Vulnerability Database (record CVE-2014-4172), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.