CVE-2026-4329
HighSummary
Wtyczka Blackhole for Bad Bots dla WordPressa jest podatna na przechowywane ataki Cross-Site Scripting (XSS) poprzez nagłówek User-Agent HTTP we wszystkich wersjach do 3.8 włącznie. Problem wynika z niewystarczającej sanitizacji danych wejściowych i ucieczki danych wyjściowych.
Risk Assessment
Atakujący bez uwierzytelnienia mogą wstrzykiwać dowolne skrypty webowe, które będą wykonywane, gdy administrator przegląda stronę logów Bad Bots. Może to prowadzić do przejęcia konta administratora lub kradzieży danych.
Recommendation
Zaleca się aktualizację wtyczki do najnowszej wersji, która naprawia tę podatność. Dodatkowo, warto wdrożyć dodatkowe mechanizmy zabezpieczeń, takie jak filtrowanie danych wejściowych i odpowiednie ucieczki danych wyjściowych.
Related vulnerabilities
- CVE-2026-90898Critical
Bifrost registers MCP clients through its management API, where a stdio client is a command plus args that is started immediately upon client addition, with no MCP handshake required. Authentication is disabled by default (governance.auth_config.is_enabled=false), meaning every caller is treated as a local admin. A single unauthenticated POST /api/mcp/client is enough to run a program as the Bifrost process user (appuser on the official image).
- CVE-2026-90703Critical
A vulnerability has been found in D-Link DWR-M921 1.1.52 in the system function of the file /boafrm/formDiskCreateShare. Manipulation of the folderpath argument leads to OS command injection. The attack can be launched remotely, and the exploit has been publicly disclosed and may be used.
- CVE-2026-90702Critical
A flaw has been found in D-Link DWR-M921 1.1.52 in the system function of the file /boafrm/formDiskFormat. Manipulation of the partition argument causes OS command injection. The attack may be initiated remotely, and the exploit has been published and may be used.
- CVE-2026-90699Critical
A weakness has been identified in D-Link DWR-M920 1.1.7 affecting the sub_41E60C function of the file /boafrm/formPinManageSetup. Manipulation of the newPin argument causes OS command injection. The attack can be initiated remotely, and the exploit has been made available to the public and could be used for attacks.
- CVE-2026-90693Critical
A flaw has been found in D-Link DIR-878 120B05 impacting the SetWan3Settings function of the WAN Settings component. Manipulation of the Primary/Secondary argument causes a stack-based buffer overflow. Remote exploitation of the attack is possible.
- CVE-2026-90692Critical
A vulnerability was detected in D-Link DIR-878 120B05 affecting the SetDynamicDNSIPv6Settings function of the Dynamic DNS IPv6 Settings component. Manipulation of the IPv6Address/Hostname argument results in a stack-based buffer overflow. The attack may be launched remotely.
- CVE-2026-85192Critical
The Joomla Conditional Content extension (regularlabs.com) in versions < 8.0.0 allows authenticated, privileged remote code execution. Conditional Content Pro accepts inline PHP Condition Rules in article syntax, and in affected versions the PHP is passed to the Conditions evaluator without checking who authored the article. Joomla's normal Author text filter preserves the syntax, so publishing the article causes the code to run as the web-server process.
- CVE-2026-82787Critical
A missing authentication for critical function vulnerability exists in CPSL-08P1EN. If this vulnerability is exploited, an affected product may be operated by a remote attacker without authentication.
- CVE-2026-90680Critical
A stack-based buffer overflow vulnerability was discovered in D-Link DIR-823G version 1.0.2B05_20181207, in the strcpy function of /HNAP1/SetStaticRouteSettings (HNAP1 component). Manipulating the PAddress/SubnetMask/Gateway arguments triggers the overflow. The attack can be launched remotely.
- CVE-2026-90608Critical
A buffer overflow vulnerability was found in Totolink A3002MU version Hh-B20211125.1046, in the formPortFw function of /boafrm/formPortFw (boa component). Manipulating the service_type argument causes the overflow. The attack can be initiated remotely and the exploit has been published.
Original NVD description (English source)
The Blackhole for Bad Bots plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the User-Agent HTTP header in all versions up to and including 3.8. This is due to insufficient input sanitization and output escaping. The plugin uses sanitize_text_field() when capturing bot data (which strips HTML tags but does not escape HTML entities like double quotes), then stores the data via update_option(). When an administrator views the Bad Bots log page, the stored data is output directly into HTML input value attributes (lines 75-83) without esc_attr() and into HTML span content without esc_html(). This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute when an administrator views the Blackhole Bad Bots admin page.

