# Znuny LTS vulnerabilities

Source: https://junglewise.ai/threats/technologies/znuny-lts  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/znuny-lts.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in Znuny LTS: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-93483, was published on 15 October 2026. 1 vulnerability in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 1
- Last 90 days: 2
- All time: 5 (0 critical, 0 exploited in the wild)

## About Znuny LTS

Znuny LTS is the long-term support version of the open-source ticket request system based on OTRS.

## Latest Znuny LTS vulnerabilities

- [CVE-2026-93483: Znuny HTTPBasicAuth header spoofing authentication bypass](https://junglewise.ai/threats/cve-2026-93483-in-znuny-through-7-3-6-an-attacker-can-bypass-specific-standard) (info, published 15 Oct 2026)
- [CVE-2026-77506: Znuny AgentTicketEmailResend template XSS](https://junglewise.ai/threats/cve-2026-77506-znuny-agentticketemailresend-template-xss) (medium, CVSS 4.8, published 20 Aug 2026)
- [CVE-2026-50592: Znuny reflected XSS in AdminCommunicationLog](https://junglewise.ai/threats/cve-2026-50592-znuny-reflected-xss-in-admincommunicationlog) (medium, CVSS 6.4, published 5 Jun 2026)
- [CVE-2026-50591: Znuny stored XSS in user preferences](https://junglewise.ai/threats/cve-2026-50591-znuny-stored-xss-in-user-preferences) (medium, CVSS 5.4, published 5 Jun 2026)
- [CVE-2025-52204: Znuny reflected XSS in customer.pl OTRSCustomerInterface parameter](https://junglewise.ai/threats/cve-2025-52204-znuny-reflected-xss-in-customer-pl-otrscustomerinterface) (medium, CVSS 6.1, published 23 Mar 2026)

## Most severe Znuny LTS vulnerabilities

- [CVE-2026-50592: Znuny reflected XSS in AdminCommunicationLog](https://junglewise.ai/threats/cve-2026-50592-znuny-reflected-xss-in-admincommunicationlog) (medium, CVSS 6.4, published 5 Jun 2026)
- [CVE-2025-52204: Znuny reflected XSS in customer.pl OTRSCustomerInterface parameter](https://junglewise.ai/threats/cve-2025-52204-znuny-reflected-xss-in-customer-pl-otrscustomerinterface) (medium, CVSS 6.1, published 23 Mar 2026)
- [CVE-2026-50591: Znuny stored XSS in user preferences](https://junglewise.ai/threats/cve-2026-50591-znuny-stored-xss-in-user-preferences) (medium, CVSS 5.4, published 5 Jun 2026)
- [CVE-2026-77506: Znuny AgentTicketEmailResend template XSS](https://junglewise.ai/threats/cve-2026-77506-znuny-agentticketemailresend-template-xss) (medium, CVSS 4.8, published 20 Aug 2026)
- [CVE-2026-93483: Znuny HTTPBasicAuth header spoofing authentication bypass](https://junglewise.ai/threats/cve-2026-93483-in-znuny-through-7-3-6-an-attacker-can-bypass-specific-standard) (info, published 15 Oct 2026)

## Vulnerabilities per week

1 vulnerability in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 1 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 1 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Znuny technologies

- [Znuny](https://junglewise.ai/threats/technologies/znuny): 5 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Znuny LTS vulnerabilities", https://junglewise.ai/threats/technologies/znuny-lts, 9 November 2026.