CVE-2026-21730
Last modified
CVE-2026-21730 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Verba is affected by a Stored Cross-Site Scripting (XSS) vulnerability within its login logging mechanism. When an unauthenticated remote attacker attempts to log in using an incorrect username and password combination, the supplied username value is recorded in the application logs. EPSS estimates a 0.21% chance of exploitation in the next 30 days.
Description
Verba is affected by a Stored Cross-Site Scripting (XSS) vulnerability within its login logging mechanism. When an unauthenticated remote attacker attempts to log in using an incorrect username and password combination, the supplied username value is recorded in the application logs. Due to lack of input sanitization, an attacker can inject a malicious XSS payload into the username field. This payload will be executed in the context of the administrator’s browser when the admin accesses the web application's log viewer. The vendor was notified early about this vulnerability, but didn't respond to our messages. This issue was fixed in version 10.0.6
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Verint | Verba Collaboration Compliance And Quality Management Platform | < 10.0.6 |
References
- https://cert.pl/en/posts/2026/05/CVE-2026-21730Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-21730?
How severe is CVE-2026-21730?
How do I fix CVE-2026-21730?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-21725A time-of-create-to-time-of-use (TOCTOU) vulnerability lets …2
- CVE-2026-21726The CVE-2021-36156 fix validates the namespace parameter for…5.3
- CVE-2026-21727--- title: Cross-Tenant Legacy Correlation Disclosure and De…3.3
- CVE-2026-21728Tempo queries with large limits can cause large memory alloc…7.5
- CVE-2026-21729Loki queries with large limits can cause large memory alloca…7.5
- CVE-2026-2173A vulnerability was identified in code-projects Online Exami…9.8
- CVE-2026-21732A web page that contains unusual GPU shader code is loaded i…9.6
- CVE-2026-21733Software installed and run as a non-privileged user may cond…7.3
- CVE-2026-21734A web page that contains unusual GPU shader code is loaded i…7.7
- CVE-2026-21736Software installed and run as a non-privileged user may cond…4.4
- CVE-2026-2174A security flaw has been discovered in code-projects Contact…9.8
- CVE-2026-21741An URL Redirection to Untrusted Site ('Open Redirect') vulne…4.8
Are you affected by CVE-2026-21730?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST