What is CVE-2023-43873?

CVE-2023-43873 is a medium-severity vulnerability in E107 Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-09-28.

How severe is CVE-2023-43873?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2023-43873 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in E107 Cms

CVE-2023-43873

A Cross Site Scripting (XSS) vulnerability in e017 CMS v.2.3.2 allows a local attacker to execute arbitrary code via a crafted script to the Name filed in the Manage Menu.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-09-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (37.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

E107 Cms — versions 2.3.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/sromanhu/e107-CMS-Stored-XSS---Manage/blob/main/README.md (Product, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-43873?: CVE-2023-43873 is a medium-severity vulnerability in E107 Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-09-28.
How severe is CVE-2023-43873?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2023-43873 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.