WordPress Role Scoper 1.3.66 Cross Site Scripting

2015.12.03
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

Advisory ID: HTB23276 Product: Role Scoper WordPress plugin Vendor: Kevin Behrens Vulnerable Version(s): 1.3.66 and probably prior Tested Version: 1.3.66 Advisory Publication: October 29, 2015 [without technical details] Vendor Notification: October 29, 2015 Vendor Patch: October 29, 2015 Public Disclosure: November 19, 2015 Vulnerability Type: Cross-Site Scripting [CWE-79] CVE Reference: CVE-2015-8353 Risk Level: Medium CVSSv3 Base Score: 6.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N] Solution Status: Fixed by Vendor Discovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ ) ----------------------------------------------------------------------------------------------- Advisory Details: High-Tech Bridge Security Research Lab discovered Cross-Site scripting vulnerability in a popular Role Scoper WordPress plugin, present on more than 10 000 websites. The vulnerability can be exploited by anonymous attackers against website administrators. Successful attack may allow to steal administrator's cookies, credentials and browser history, modify web page content to perform phishing attacks, or even to perform drive-by-download attacks by injecting malware into website pages when the website administrator follows a specially crafted link with XSS exploit. The vulnerability is caused by absence of filtration of input-data passed via the "object_name" HTTP GET parameter to "/wp-admin/admin.php" script, when "page" is set to value "rs-object_role_edit". A remote unauthenticated attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website. A simple exploit below will display JS popup with "ImmuniWeb" word: http://[host]/wp-admin/admin.php?page=rs-object_role_edit&object_name=%27%22%3E%3Cscript%3Ealert%28ImmuniWeb%29%3B%3C%2Fscript%3E ----------------------------------------------------------------------------------------------- Solution: Update to Role Scoper 1.3.67 More Information: https://wordpress.org/plugins/role-scoper/changelog/ ----------------------------------------------------------------------------------------------- References: [1] High-Tech Bridge Advisory HTB23276 - https://www.htbridge.com/advisory/HTB23276 - Reflected XSS in Role Scoper WordPress Plugin. [2] Role Scoper Wordpress plugin - http://agapetry.net/ - CMS-like permissions for reading and editing. Content-specific restrictions and roles supplement/override WordPress roles. [3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE? is a dictionary of publicly known information security vulnerabilities and exposures. [4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types. [5] ImmuniWeb? SaaS - https://www.htbridge.com/immuniweb/ - hybrid of manual web application penetration test and cutting-edge vulnerability scanner available online via a Software-as-a-Service (SaaS) model. ----------------------------------------------------------------------------------------------- Disclaimer: The information provided in this Advisory is provided "as is" and without any warranty of any kind. Details of this Advisory may be updated in order to provide as accurate information as possible. The latest version of the Advisory is available on web page [1] in the References.


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