CVE-2026-27243: adobe adobe connect Cross-site Scripting
Vulnerability summary
CVE-2026-27243 is a critical (CVSS 9.3) Cross-site Scripting vulnerability in adobe adobe connect. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.9% of scored vulnerabilities.
Timeline
- 14-04-2026PublishedVulnerability first disclosed.
- 27-08-2026Last modifiedVulnerability information updated.
Description
Adobe Connect versions 2025.3, 12.10 and earlier are affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST9.3CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
EPSS trend
Probability
0.74%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
+0.44 pp
From 0.30% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Adobe4 products
- adobe connect≤ 12.10
- adobe connect desktop application≤ 2025.3
- connect< 12.11
- connect_desktop_application≤ 2025.3 | < 2025.9.15
1 vendor · 4 products
References
1 links- helpx.adobe.com/security/products/connect/apsb26-37.htmlVendor Advisory