Verity Ultraseek before 5.7 allows remote attackers to use the server as a proxy for web attacks and host scanning via a direct request to the highlight/index.html script.

Verity Ultraseek before 5.7 allows remote attackers to obtain sensitive information via direct requests with (1) a null ("%00") terminated url parameter to help/urlstatusgo.html; or missing parameters to (2) help/header.html, (3) help/footer.html, (4) spell.html, (5) coreforma.html, (6) daterange.html, (7) hits.html, (8) hitsnavbottom.html, (9) indexform.html, (10) indexforma.html, (11) languages.html, (12) nohits.html, (13) onehit1.html, (14) onehit2.html, (15) query.html, (16) queryform0.html, (17) queryform0a.html, (18) queryform1.html, (19) queryform1a.html, (20) queryform2.html, (21) queryform2a.html, (22) quicklinks.html, (23) relatedtopics.html, (24) signin.html, (25) subtopics.html, (26) thesaurus.html, (27) topics.html, (28) hitspagebar.html, (29) highlight/highlight.html, (30) highlight/highlight_one.html, and (31) highlight/topnav.html, which leaks the installation path in the resulting error message.

Absolute path traversal vulnerability in admin/logfile.txt in Verity Ultraseek before 5.6.2 allows remote attackers to read arbitrary files via the name variable.

Buffer overflow in the ZIP capability for multiple products allows remote attackers to cause a denial of service or execute arbitrary code via ZIP files containing entries with long filenames, including (1) Microsoft Windows 98 with Plus! Pack, (2) Windows XP, (3) Windows ME, (4) Lotus Notes R4 through R6 (pre-gold), (5) Verity KeyView, and (6) Stuffit Expander before 7.0.

Cross-site scripting (XSS) vulnerability in Verity Ultraseek before 5.3.3 allows remote attackers to inject arbitrary HTML and web script via search parameters.

Cross-site scripting (XSS) vulnerability in Verity Search97 allows remote attackers to insert arbitrary web content and steal sensitive information from other clients, possibly due to certain error messages from template pages that use the (1) vformat or (2) vfilter functions.

Verity Ultraseek before 5.2.2 allows remote attackers to obtain the full pathname of the document root via an MS-DOS device name in the web search option, such as (1) NUL, (2) CON, (3) AUX, (4) COM1, (5) COM2, and others.