What is CVE-2023-26599?

CVE-2023-26599 is a medium-severity vulnerability in Uniguest Tripleplay, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-04-19.

How severe is CVE-2023-26599?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2023-26599 known to be exploited?

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

XSS in Uniguest Tripleplay

CVE-2023-26599

XSS vulnerability in TripleSign in Tripleplay Platform releases prior to Caveman 3.4.0 allows attackers to inject client-side code to run as an authenticated user via a crafted link.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-04-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (27.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Uniguest Tripleplay — versions 3.4.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

sT0wn-nl/CVEs

References

tripleplay.tv (Product)
tripleplay.tv/wp-content/uploads/2023/03/CVE-2023-26599-Summary.pdf (Vendor Advisory)

Frequently asked questions

What is CVE-2023-26599?: CVE-2023-26599 is a medium-severity vulnerability in Uniguest Tripleplay, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-04-19.
How severe is CVE-2023-26599?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-26599 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.