The statistic shows the most commonly exploited vulnerabilities in internet applications. The download of malicious PDF files had accounted for 11 percent of the exploited vulnerabilities in 2008.
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Symantec. (April 30, 2009). Security flaws in web applications that have been most commonly used for web-based attacks in 2008 and 2009 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/263327/most-commonly-exploited-vulnerabilities-in-internet-applications/
Symantec. "Security flaws in web applications that have been most commonly used for web-based attacks in 2008 and 2009." Chart. April 30, 2009. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/263327/most-commonly-exploited-vulnerabilities-in-internet-applications/
Symantec. (2009). Security flaws in web applications that have been most commonly used for web-based attacks in 2008 and 2009. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/263327/most-commonly-exploited-vulnerabilities-in-internet-applications/
Symantec. "Security Flaws in Web Applications That Have Been Most Commonly Used for Web-based Attacks in 2008 and 2009." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 30 Apr 2009, /statistics/263327/most-commonly-exploited-vulnerabilities-in-internet-applications/
Symantec, Security flaws in web applications that have been most commonly used for web-based attacks in 2008 and 2009 ÌÇÐÄÆƽâ°æ, /statistics/263327/most-commonly-exploited-vulnerabilities-in-internet-applications/ (last visited July 24, 2026)
Security flaws in web applications that have been most commonly used for web-based attacks in 2008 and 2009 [Graph], Symantec, April 30, 2009. [Online]. Available: /statistics/263327/most-commonly-exploited-vulnerabilities-in-internet-applications/
