CVE-2012-1503 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	2.26%	–	–
2022-02-20	–	–	2.26%	–	–
2022-04-03	–	–	2.26%	–	–
2022-08-28	–	–	2.26%	–	–
2023-03-12	–	–	–	0.6%	–
2023-07-16	–	–	–	0.6%	–
2024-02-11	–	–	–	0.6%	–
2024-06-02	–	–	–	0.53%	–
2024-09-01	–	–	–	0.53%	–
2024-09-22	–	–	–	0.53%	–
2024-10-27	–	–	–	0.53%	–
2024-12-22	–	–	–	0.7%	–
2025-03-09	–	–	–	0.7%	–
2025-01-19	–	–	–	0.7%	–
2025-03-09	–	–	–	0.7%	–
2025-03-18	–	–	–	–	7.71%
2025-03-18	–	–	–	–	7.71,%

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

Date	Percentile
2022-02-06	58%
2022-02-20	59%
2022-04-03	8%
2022-08-28	81%
2023-03-12	75%
2023-07-16	76%
2024-02-11	78%
2024-06-02	77%
2024-09-01	78%
2024-09-22	77%
2024-10-27	78%
2024-12-22	8%
2025-03-09	81%
2025-01-19	8%
2025-03-09	81%
2025-03-18	91%
2025-03-18	91%

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Source URL: http://www.cloudscan.me/2012/10/cve-2012-1503-movable-type-pro-513en.html Keywords: CVE-2012-1503, Movable Type Pro 5.13en, Stored XSS, JavaScript Injection, Vendor Unresponsive, Full Disclosure Introduction Movable Type (MT) started as one of the industries first blogging platforms and has developed into an industry leading publishing platform which has been used globally for more than 10 years. Movable Type makes it simple to manage entire websites, start new blogs, and build an engaged community of readers and customers. Six Apart KK has assumed responsibility over all intellectual property and business operations of Movable Type, as well as trademark rights of Six Apart. The new Six Apart, a Japanese corporation formerly known as Six Apart KK, currently develops, markets and supports Movable Type for a global user base, and also operates the company's website (www.sixapart.com). The application can be downloaded from URL http://www.movabletype.com/download/. Exploit Our researchers discovered a persistent XSS vulnerability, allowing an attacker to inject arbitrary script code into the comment section of any existing Mt5.13en installation. The blog comment is being moderated before published; that means an attacker can target the moderating Admin (employee) via Javascript Injection. Exploit Code: <a href=javascript:alert(document.cookie)> X X X X X X X X X X X X X X X<br> X X X X X X X X X X X X X X X<br> X X X X CLICKME NOW! X X X X<br> X X X X X X X X X X X X X X X<br> X X X X X X X X X X X X X X X</a> Screenshot at URL http://www.cloudscan.me/2012/10/cve-2012-1503-movable-type-pro-513en.html Bug Metrics: CVSS 6.5 Timeline March 2012 - Email PoC to Vendor via mt-security@sixapart.jp April 2012 - No Response from Vendor May 2012 - Email PoC to Vendor via mt-security@sixapart.jp October 2012 - Full Disclosure -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 10.2.0 (Build 2599) Charset: utf-8 wsBVAwUBUIFqUXz+WcLIygj0AQhJ4Af8DaKXqSTGW30YeoLXeq0kUhqXQ0BicpW8 UZGCMMnlgct7DVh36GIxWc/60WXtuA8nuPqSm7eMKbIrMsvQXPhg9o8MB0LErh49 e7DY1rZ5hVpq1jVqEEQIyu2bxqS8epFR9/5CSUukGnTwaf4gTna8ZB5UZoRPhLI9 ih/OKS1L1WZeykUqZB6oSjkc4t3AeS6iYdXZMvkSrwSgnN6iUKBa3lSSzuEzEmfv Qhuvb0R6YxNMQafHOr4IlNa/A2rgGBlhYB3P5/wXdAmcnjIhPC4qtH6ik52+NiKQ 3m5Jr3V2rXVhJRrRwj0ubC4PtfVjIC1YP/k4zY0gA7DOmHhZKk+7Iw== =JXEo -----END PGP SIGNATURE-----