What is CVE-2023-26046?

CVE-2023-26046 is a medium-severity vulnerability in Kitabisa Teler-Waf, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.5/10. Published 2023-03-02.

How severe is CVE-2023-26046?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-26046 known to be exploited?

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

XSS in Kitabisa Teler-Waf

CVE-2023-26046

teler-waf is a Go HTTP middleware that provides teler IDS functionality to protect against web-based attacks. In teler-waf prior to version 0.1.1 is vulnerable to bypassing common web attack rules when a specific HTML entities payload is used. This vulnerability allows an attacker to execute arbitrary JavaScript code on the victim's browser and compromise the security of the web application. The vulnerability exists due to teler-waf failure to properly sanitize and filter HTML entities in user input. An attacker can exploit this vulnerability to bypass common web attack threat rules in teler-waf and launch cross-site scripting (XSS) attacks. The attacker can execute arbitrary JavaScript code on the victim's browser and steal sensitive information, such as login credentials and session tokens, or take control of the victim's browser and perform malicious actions. This issue has been fixed in version 0.1.1.

Published 2023-03-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (43.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.0% 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

Kitabisa Teler-Waf — versions < 0.1.1

Weakness classification (CWE)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

github.com/kitabisa/teler-waf/security/advisories/GHSA-9f95-hhg4-pg4f (Vendor Advisory)
github.com/kitabisa/teler-waf/commit/d1d49cfddfa3ec2adad962870f14b85cd1aaf739 (Patch)
github.com/kitabisa/teler-waf/releases/tag/v0.1.1 (Release Notes)

Frequently asked questions

What is CVE-2023-26046?: CVE-2023-26046 is a medium-severity vulnerability in Kitabisa Teler-Waf, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.5/10. Published 2023-03-02.
How severe is CVE-2023-26046?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-26046 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.