CVE-2025-2776 SysAid SysAid On-Prem: web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
Confirmed exploited by CISA on · US federal patch deadline Aug 12, 2025
What to do
- Install SysAid's security update for SysAid On-Prem. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability
- Product
- SysAid SysAid On-Prem
- CISA description
- SysAid On-Prem contains an improper restriction of XML external entity reference vulnerability in the Server URL processing functionality, allowing for administrator account takeover and file read primitives.
- Type of flaw
- Web page flaw (CWE-611)
- Confirmed exploited
- Jul 22, 2025
- US federal patch deadline
- Aug 12, 2025
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Answering about CVE-2025-2776 ·
Questions about CVE-2025-2776
Is CVE-2025-2776 being exploited?
Yes. CISA added CVE-2025-2776 to its Known Exploited Vulnerabilities catalog on Jul 22, 2025, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2025-2776?
Install SysAid's security update for SysAid On-Prem. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2025-2776?
Only if you use SysAid SysAid On-Prem. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.