Threats / Kentico / CVE-2025-2749
CVE-2025-2749
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Kentico Xperience vulnerability
Kentico Xperience contains a path traversal vulnerability allowing authenticated Staging Sync Server users to upload arbitrary data to unintended locations.
Verdict
Today item — known-exploited.
An authenticated attacker with Staging Sync Server access can exploit path traversal to write files outside intended directories, potentially achieving code execution or data manipulation depending on file permissions and application architecture.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
1 independent public report of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-04-20).
Probability (EPSS)
EPSS 0.03809 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Kentico, Kentico Xperience. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-22 Path Traversal, CWE-434 Unrestricted File Upload — weakness family: Path traversal / file.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I authenticate to the Staging Sync Server using valid credentials.
Business
Internal account compromise or insider threat creates initial access risk.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I craft a malicious upload request using path traversal sequences to bypass directory restrictions.
Business
Security controls fail to prevent unauthorized file placement in sensitive locations.
3
Lateral reach — past segmentation narrative 3
Attacker
I upload arbitrary files to critical application directories or web-accessible paths.
Business
Arbitrary file write enables code execution, configuration tampering, or data exfiltration.
4
Data at risk — exfiltration narrative 4
Attacker
I execute injected code or modify application behavior through the uploaded files.
Business
System compromise leads to potential data breach, service disruption, or lateral movement within infrastructure.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05
Coverage & confidence
— what we know, and what we don’tEstablished (cited)
Coverage gaps — stated, not hidden
Disclosure & credit2
Catalogued by VulnCheckCNA
Credited with finding itPiotr Bazydlo (watchTowr)finder