In KDE Ark before 20.08.1, a crafted TAR archive with symlinks can install files outside the extraction directory, as demonstrated by a write operation to a user's home directory.
Cross-site scripting (XSS) vulnerability in the KHTMLPart::htmlError function in khtml/khtml_part.cpp in Konqueror in KDE SC 4.4.0 through 4.6.1 allows remote attackers to inject arbitrary web script or HTML via the URI in a URL corresponding to an unavailable web site.
Cross-site scripting (XSS) vulnerability in webkitpart.cpp in kwebkitpart allows remote attackers to inject arbitrary web script or HTML via a URL associated with a nonexistent domain name, related to a "universal XSS" issue, a similar vulnerability to CVE-2010-2536.
In kerfuffle/jobs.cpp in KDE Ark before 20.08.0, a crafted archive can install files outside the extraction directory via ../ directory traversal.
KDE Konqueror 3.5.7 allows remote attackers to spoof the URL address bar by calling setInterval with a small interval and changing the window.location property.
Multiple cross-site scripting (XSS) vulnerabilities in KDE-Runtime 4.14.3 and earlier, kwebkitpart 1.3.4 and earlier, and kio-extras 5.1.1 and earlier allow remote attackers to inject arbitrary web script or HTML via a crafted URI using the (1) zip, (2) trash, (3) tar, (4) thumbnail, (5) smtps, (6) smtp, (7) smb, (8) remote, (9) recentdocuments, (10) nntps, (11) nntp, (12) network, (13) mbox, (14) ldaps, (15) ldap, (16) fonts, (17) file, (18) desktop, (19) cgi, (20) bookmarks, or (21) ar scheme, which is not properly handled in an error message.
In KDE KMail 5.2.3, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.
okular version 18.08 and earlier contains a Directory Traversal vulnerability in function "unpackDocumentArchive(...)" in "core/document.cpp" that can result in Arbitrary file creation on the user workstation. This attack appear to be exploitable via he victim must open a specially crafted Okular archive. This issue appears to have been corrected in version 18.08.1
In KDE Trojita 0.7, man-in-the-middle attackers can create new folders because untagged responses from an IMAP server are accepted before STARTTLS.
The KDE SSL Wrapper (KSSL) API in KDE SC 4.6.0 through 4.7.1, and possibly earlier versions, does not use a certain font when rendering certificate fields in a security dialog, which allows remote attackers to spoof the common name (CN) of a certificate via rich text.