CVE-2023-40208
Published: 04 September 2023
Summary
CVE-2023-40208 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Urosevic Stock Ticker. Its CVSS base score is 7.1 (High).
Operationally, ranked in the top 11.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability CVE-2023-40208 is an unauthenticated reflected cross-site scripting issue, tracked as CWE-79, that affects the Stock Ticker plugin for WordPress in all versions through 3.23.3. It received a CVSS v3.1 base score of 7.1 reflecting network attack vector, low complexity, no required privileges, required user interaction, changed scope, and limited impacts to confidentiality, integrity, and availability.
An unauthenticated attacker can supply a crafted request that causes the plugin to reflect executable script into a victim’s browser session when the victim follows a malicious link, enabling the attacker to run arbitrary JavaScript in the context of the affected WordPress site.
Public advisories on Patchstack document the flaw for the listed versions of the Stock Ticker plugin and identify the vulnerable code paths.
The associated EPSS score rose from lower values to a recorded peak of 0.0600 on 2026-01-13 before receding to the current value of 0.0367.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-44805
Vulnerability details
Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Aleksandar Urošević Stock Ticker plugin <= 3.23.3 versions.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.