CVE-2023-31177 | Improper neutralizataion of input could lead to execution of arbitrary code

An Improper Neutralization of Input During Web Page Generation  ('Cross-site Scripting') in the Schweitzer Engineering Laboratories SEL-451 could allow an attacker to craft a link that could execute arbitrary code on a victim's system. See product Instruction Manual Appendix A dated 20230830 for more details.

Published: 2023-11-30 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-31177 is rated Low Risk (30.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.17%). 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-2023-31177

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 2025-11-21 0.26% 0.17% -0.09%
2 2025-11-18 0.17% 0.26% +0.09%
3 2025-04-20 — 0.17% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-31177

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]
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/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:N)
No account or special rights needed—anonymous or random user is enough.
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.
 2.8 2.7 [email protected]

Weakness enumeration for CVE-2023-31177

Affected software / configurations for CVE-2023-31177

Vendor Product Version Raw CPE
selinc sel-451_firmware >= r315-v0, < r315-v4 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r316-v0, < r316-v4 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r317-v0, < r317-v4 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r318-v0, < r318-v5 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r320-v0, < r320-v3 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r321-v0, < r321-v3 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r322-v0, < r322-v3 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r323-v0, < r323-v5 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r324-v0, < r324-v4 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware >= r325-v0, < r325-v3 cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
selinc sel-451_firmware r326-v0 cpe:2.3:o:selinc:sel-451_firmware:r326-v0:*:*:*:*:*:*:*
selinc sel-451_firmware r327-v0 cpe:2.3:o:selinc:sel-451_firmware:r327-v0:*:*:*:*:*:*:*

References for CVE-2023-31177

cvelogic Threat Intelligence