CVE-2020-10540Network attack vector

Script execution via CSRF and XSS

Published Mar 13, 2020 · Updated Aug 4, 2024

Cross-Site Request Forgery in Untis WebUntis before 2020.9.6 allows remote attackers to send malicious requests to authenticated users. Under certain rights and module combinations, WebUntis accepts forged requests that can combine CSRF with stored cross-site scripting to deliver malicious code to other users. Exploitation requires a victim with an active authenticated session and the affected rights and modules; the vendor reported no use in its logs.

CVSS severity8.8
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-Site Request Forgery in Untis WebUntis before 2020.9.6 allows remote attackers to send malicious requests to authenticated users. Under certain rights and module combinations, WebUntis accepts forged requests that can combine CSRF with stored cross-site scripting to deliver malicious code to other users. Exploitation requires a victim with an active authenticated session and the affected rights and modules; the vendor reported no use in its logs.

The record

CVE
CVE-2020-10540
Published
Mar 13, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 13, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
8.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo