Stored cross-site scripting in WebP Express - #VU18920
Published: June 26, 2019
Vulnerability identifier: #VU18920
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Green
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Bjørn Rosell
Affected software:
WebP Express
WebP Express
Detailed vulnerability description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Video PoC:
https://drive.google.com/file/d/1TtiTruCEGGg3U7LDC10gacvNfbGku6Gi/view?usp=sharing
Remediation
Install updates from vendor's website.