CVE-2023-42029 | IBM CICS TX cross-site scripting

IBM CICS TX Standard 11.1, Advanced 10.1, 11.1, and TXSeries for Multiplatforms 8.1, 8.2, 9.1 are vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 266059.

Published: 2023-11-02 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2023-42029 is rated Low Risk (30.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.41%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-42029

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.15% 0.41% +0.26%
2 2025-03-30 0.17% 0.15% -0.02%
3 2025-03-29 0.17%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-42029

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.8 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
1.7 2.7 [email protected]
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
2.3 2.7 [email protected]

Weakness enumeration for CVE-2023-42029

Affected software / configurations for CVE-2023-42029

Vendor Product Version Raw CPE
ibm txseries_for_multiplatforms 8.1 cpe:2.3:a:ibm:txseries_for_multiplatforms:8.1:*:*:*:*:*:*:*
ibm txseries_for_multiplatforms 8.2 cpe:2.3:a:ibm:txseries_for_multiplatforms:8.2:*:*:*:*:*:*:*
ibm txseries_for_multiplatforms 9.1 cpe:2.3:a:ibm:txseries_for_multiplatforms:9.1:*:*:*:*:*:*:*
ibm cics_tx 10.1 cpe:2.3:a:ibm:cics_tx:10.1:*:*:*:advanced:*:*:*
ibm cics_tx 11.1 cpe:2.3:a:ibm:cics_tx:11.1:*:*:*:advanced:*:*:*
ibm cics_tx 11.1 cpe:2.3:a:ibm:cics_tx:11.1:*:*:*:standard:*:*:*

References for CVE-2023-42029

cvelogic Threat Intelligence