CVE-1999-1357
HighExploitation Probability (EPSS)
Elevated risk69th percentile - higher than 69% of all known CVEs
Summary
Netscape Communicator versions 4.04 through 4.7 (and possibly other versions) on various UNIX operating systems converts the 0x8b character to a '<' sign and the 0x9b character to a '>' sign, which could allow remote attackers to perform cross-site scripting (CSS) attacks in CGI programs that do not filter these characters.
Risk Assessment
Attackers could exploit this vulnerability to inject malicious code into web applications, potentially leading to data theft or session hijacking.
Recommendation
It is recommended to update Netscape Communicator to the latest version and implement character filtering in CGI programs to prevent CSS attacks.
Other vulnerabilities in Netscape Communicator
See all- CVE-2000-0087Medium
The Netscape Mail Notification (nsnotify) utility in Netscape Communicator uses IMAP without SSL, even if the user has set a preference for SSL connections. This allows a remote attacker to sniff usernames and passwords in plaintext.
- CVE-1999-0892Medium
There is a buffer overflow in Netscape Communicator before version 4.7 caused by a dynamic font whose length field is less than the size of the font.
- CVE-1999-1226Low
Netscape Communicator 4.7 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long certificate key.
- CVE-1999-0685Medium
Buffer overflow in Netscape Communicator occurs via EMBED tags in the pluginspage option.
- CVE-1999-0809Medium
Netscape Communicator 4.x with JavaScript enabled does not warn a user of cookie settings, even if they have selected the option 'Only accept cookies originating from the same server as the page being viewed'.
- CVE-1999-0762Low
A vulnerability in Netscape Communicator allows a remote attacker to use the 'about' protocol to gain access to browser information when JavaScript is embedded within the TITLE tag.
Original NVD description (English source)
Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a "<" sign, and the 0x9b character to a ">" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs that do not filter these characters.