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CVE-2026-7195 is a high‑severity flaw in Progress Sitefinity’s web services, caused by improper input validation (CWE‑20). The issue exists because certain web service endpoints do not properly sanitize user‑supplied data before processing it. An unauthenticated, remote attacker can send specially crafted requests to these endpoints. If a legitimate user interacts with the malicious request (e.g., clicks a crafted link or visits a manipulated page), and if the Sitefinity instance is running a non‑default configuration that exposes the vulnerable endpoints, the attacker can achieve a full compromise of the targeted user account.
The vulnerability affects all Sitefinity versions from 14.1.x up to 15.4.8629, with fixed versions starting at 14.4.8152, 15.0.8234, 15.1.8335, 15.2.8441, 15.3.8531, and 15.4.8630. The CVSS v3.1 base score is 8.8 (High), with the vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. This means the attack is network‑exploitable, low complexity, requires no privileges, but depends on user interaction and a non‑default configuration (Scope Unchanged). The impact on Confidentiality, Integrity, and Availability is High.
Exploitation typically involves injecting unexpected data into a web service parameter that is later used in a security‑sensitive operation, such as authentication or session handling. Because of the missing validation, the injected data can alter the internal logic of the service, leading to unauthorized access or modification of user account data. The requirement for user interaction makes this a “one‑click” style vulnerability, similar to a Cross‑Site Request Forgery (CSRF) but with deeper consequences. The non‑default configuration condition means that many default installations might not be exposed, but any customised environment that enables the vulnerable web services is at risk.
As of the advisory date (June 2, 2026), no public proof‑of‑concept or active exploitation has been reported. However, given the high CVSS score and the fact that patches are already available, organisations should prioritise updating immediately.
DailyCVE Form:
- Platform: Progress Sitefinity
- Version: 14.1.0–15.4.8629
- Vulnerability: Improper input validation
- Severity: High (8.8)
- date: 2026-06-02
- Prediction: Already patched
What Undercode Say:
Check current Sitefinity version
Get-Package -Name "Progress.Sitefinity" | Select-Object Version
Detect vulnerable endpoints by scanning for missing input validation
curl -X POST "https://target.com/Sitefinity/Services/SomeEndpoint.svc" \
-H "Content-Type: application/json" \
-d '{"userId":"admin","parameter":"'; DROP TABLE Users; --"}'
Example Python detection script
import requests
payload = {"input": "<script>alert('XSS')</script>"}
r = requests.post("https://target.com/vulnerable/service", json=payload)
if "unexpected response" in r.text:
print("Potential CVE-2026-7195")
Exploit:
No public exploit exists. In theory, an attacker would craft a malicious HTTP request to a vulnerable Sitefinity web service, embedding unexpected data (e.g., extra SQL or script fragments). If a logged‑in user interacts with that request, the server processes the unsanitised input, leading to account takeover. The non‑default configuration must expose the vulnerable endpoint.
Protection:
Upgrade to any of the following fixed versions: 14.4.8152, 15.0.8234, 15.1.8335, 15.2.8441, 15.3.8531, 15.4.8630, or later. If immediate patching is not possible, revert to the default Sitefinity configuration (which disables the vulnerable web services) and block external access to `/Sitefinity/Services/` using a WAF or firewall rules.
Impact:
Successful exploitation allows a remote, unauthenticated attacker to fully compromise the integrity and confidentiality of user accounts. The attacker can view or modify any data belonging to the victim account, leading to privilege escalation, data theft, or further lateral movement within the application. The CVSS score of 8.8 (High) underscores the severity of this flaw.
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Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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