CVE-2026-49825
HighCVSS 8.2Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
The lxml library prior to 6.1.1 was missing the xlink:href attribute in lxml.html.defs.link_attrs, which can be used for URL bypass attacks in embedded SVG/MathML content. This vulnerability was fixed in lxml 6.1.1 and lxml_html_clean 0.4.5.
Risk Assessment
An attacker can exploit this flaw to bypass URL filters and conduct phishing attacks or inject malicious content.
Recommendation
Update lxml to version 6.1.1 or later and lxml_html_clean to 0.4.5 or later.
Related vulnerabilities
- CVE-2026-120344Critical
A vulnerability was found in the WAVLINK WN551X3-A device in the system function of /bin/ioos, within the WireGuard CLI Group Handler component. Manipulating the group_name argument leads to OS command injection, and the attack can be performed remotely. The exploit has been publicly disclosed and may be used.
- CVE-2026-120322Critical
A vulnerability was identified in Termix-SSH Termix up to 2.9.2 affecting the /plugin-api/file-manager/transferToHost endpoint. Manipulation of the destPath argument leads to path traversal, and the attack can be launched remotely. The exploit is publicly available and may be used.
- CVE-2026-120283Critical
A vulnerability was identified in Linksys E8450 version 1.2.00.360516 in the strcpy function of /www/cgi-bin/portal.cgi. Manipulation of the hidden_timezone argument leads to a stack-based buffer overflow. The attack can be executed remotely, and the vendor did not respond to the disclosure.
- CVE-2026-120282Critical
A vulnerability was determined in WAVLINK WN536AX6-A version V260507 in the host_black function of /protocol.csp. Manipulation of the mac argument causes OS command injection. The exploit has been publicly disclosed and remote exploitation is possible.
- CVE-2026-120281Critical
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- CVE-2026-120280Critical
A vulnerability has been found in WAVLINK WN536AX6-A version V260507 in the WireGuard component, in the wireguard_cli_group handler of /protocol.csp. Manipulation of the group_id/group_name arguments leads to OS command injection. The exploit has been disclosed publicly and the attack may be initiated remotely.
- CVE-2026-120279Critical
A flaw has been found in WAVLINK WN536AX6-A version V260507 in the openvpn_cli Handler component, in an unknown function of /protocol.csp. Manipulation of the file_id argument can lead to OS command injection. The exploit has been published and the attack can be launched remotely.
- CVE-2026-120277Critical
A vulnerability was detected in WAVLINK WN536AX6-A (version V260507_2.0.0) in the sub_41a1d8 function of the /bin/ioos file, related to the WireGuard CLI group handler. Manipulation of the group_name argument leads to OS command injection. The issue can be exploited remotely and a public exploit is already available.
- CVE-2026-120276Critical
A weakness was identified in WAVLINK WN536AX6-A (version V260507_2.0.0) in the sub_416760 function of the /bin/ioos file, within the web management interface component. Manipulation of the group_name argument causes OS command injection. The attack can be initiated remotely and the exploit has been made publicly available.
- CVE-2026-120240Critical
A vulnerability was found in the WAVLINK WN553X1-B device (version V260403_2.0.0) in the sub_41A748 function of /bin/ioos, part of the WireGuard CLI Group Handler. Manipulating the group_id/group_name arguments can lead to OS command injection. The attack can be performed remotely and the exploit has been publicly disclosed.
Original NVD description (English source)
lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.1, link attributes in ``lxml.html.defs.link_attrs`` were missing ``xlink:href``, which can be used for URL bypass attacks in embedded SVG/MathML/etc. content. This vulnerability was fixed in lxml 6.1.1 and lxml_html_clean 0.4.5.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

