Cross-site scripting in Symantec Endpoint Detection and Response
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Broadcom Symantec Endpoint Detection and Response (SEDR) Console from 4.12 before 4.13 has a cross-site scripting flaw (CWE-79). Improper neutralization of input lets an attacker inject script that runs in another user's session. An attacker needs low privileges and must get a user to interact with the page, and can then reach functionality or information normally restricted to that user.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Symantec Endpoint Detection and Response (SEDR) Console, prior to 4.13, may be susceptible to a Cross-Site Scripting (XSS) vulnerability, which is a type of issue whereby an attacker may attempt to inject malicious script that executes in the context of another user’s session, potentially resulting in unauthorized access to functionality or information normally restricted to that user.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade Symantec Endpoint Detection and Response to version 4.13.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA Symantec Endpoint Detection and Response (Broadcom) Fixed in 4.13
Timeline
- 2026-10-13 Threatist record created from CVE-2026-19810
- 2026-10-13 Alias added: GHSA-7vr8-cmj7-5jj4
- 2026-10-14 Priority changed: MEDIUM → LOW
- 2026-10-15 CISA SSVC decision points changed
References
More Broadcom vulnerabilities
- TI-2026-42442 vCenter directory-traversal vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-24610 Out-of-bounds write in VMware vCenter Server KEVCVSS 3.1CRITICAL 9.8
- TI-2018-01178 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
- TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
- TI-2025-01721 Code injection exposure in Fabric OS 9.1.0 through 9.1.1d6 KEVCVSS 4.0HIGH 8.6
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2026-19810 · CVE Program
- CVE-2026-19810 · NVD
- FIRST EPSS
- GHSA-7vr8-cmj7-5jj4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences