CVE-2023-31159 | Improper Neutralization of Input During Web Page Generation

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller (SEL RTAC) Web Interface could allow a remote authenticated attacker to inject and execute arbitrary script code. See SEL Service Bulletin dated 2022-11-15 for more details.

Published: 2023-05-10 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-31159 is rated Low Risk (29.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.44%). 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-2023-31159

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 0.20% 0.44% +0.24%
2 2026-05-18 0.28% 0.20% -0.08%
3 2026-05-11 — 0.28% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-31159

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L 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:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
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:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 0.9 3.4 [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-2023-31159

Affected software / configurations for CVE-2023-31159

Vendor Product Version Raw CPE
selinc sel-2241_rtac_module_firmware >= r113-v0, < r150-v2 cpe:2.3:o:selinc:sel-2241_rtac_module_firmware:*:*:*:*:*:*:*:*
selinc sel-3350_firmware >= r148-v0, < r150-v2 cpe:2.3:o:selinc:sel-3350_firmware:*:*:*:*:*:*:*:*
selinc sel-3505_firmware >= r119-v0, < r150-v2 cpe:2.3:o:selinc:sel-3505_firmware:*:*:*:*:*:*:*:*
selinc sel-3505-3_firmware >= r132-v0, < r150-v2 cpe:2.3:o:selinc:sel-3505-3_firmware:*:*:*:*:*:*:*:*
selinc sel-3530_firmware >= r100-v0, < r150-v2 cpe:2.3:o:selinc:sel-3530_firmware:*:*:*:*:*:*:*:*
selinc sel-3530-4_firmware >= r108-v0, < r150-v2 cpe:2.3:o:selinc:sel-3530-4_firmware:*:*:*:*:*:*:*:*
selinc sel-3532_firmware >= r132-v0, < r150-v2 cpe:2.3:o:selinc:sel-3532_firmware:*:*:*:*:*:*:*:*
selinc sel-3555_firmware >= r134-v0, < r150-v2 cpe:2.3:o:selinc:sel-3555_firmware:*:*:*:*:*:*:*:*
selinc sel-3560e_firmware >= r144-v2, < r150-v2 cpe:2.3:o:selinc:sel-3560e_firmware:*:*:*:*:*:*:*:*
selinc sel-3560s_firmware >= r144-v2, < r150-v2 cpe:2.3:o:selinc:sel-3560s_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-31159

cvelogic Threat Intelligence