CVE-2026-28315 SolarWinds Serv-U Authenticated Stored Cross-site Scripting (XSS) Vulnerability

What is CVE-2026-28315?

CVE-2026-28315 is a medium-severity cross-site scripting vulnerability in Solarwinds Serv-U, published on 21 Jul 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

SolarWinds Serv-U was found to be affected by a stored cross-site scripting vulnerability that could lead to session hijacking or information disclosure from an administrator account.

Weakness: CWE-79

Which versions are affected by CVE-2026-28315?

It affects 1 product.

Products include Solarwinds Serv-U.

How do I fix CVE-2026-28315?

No fix has been published for CVE-2026-28315 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-28315 being exploited?

There is no known exploitation of CVE-2026-28315 in the wild and no public exploit code.

Other vulnerabilities in Solarwinds Serv-U

• CVE-2021-35211 SolarWinds Serv-U Remote Code Execution Exploited Critical 9.0
• CVE-2024-28995 SolarWinds Serv-U Path Traversal Vulnerability Exploited High 8.6
• CVE-2026-28318 SolarWinds Serv-U Uncontrolled Resource Consumption Exploited High 7.5
• CVE-2021-35247 SolarWinds Serv-U Improper Input Validation Exploited Medium 4.3
• CVE-2020-35481 Code injection in n/a Critical 9.8

All Solarwinds Serv-U vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-27f7-w76r-h7r2.