High severity · published Oct 1, 2026
CVE-2026-103687
rhukster dom-sanitizer SVG Sanitization DOMSanitizer.php url incomplete blacklist
7.3
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability has been found in rhukster dom-sanitizer up to 1.0.15. The affected element is the function url of the file src/DOMSanitizer.php of the component SVG Sanitization. Such manipulation leads to incomplete blacklist. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.16 is sufficient to fix this issue. The name of the patch is 139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a. Upgrading the affected component is recommended.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
dom-sanitizer · rhukster
1.0.0; 1.0.1; 1.0.2; 1.0.3; 1.0.4; 1.0.5; +10 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103687
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103687
vdb-entry
https://vuldb.com/vuln/412551
signature
https://vuldb.com/vuln/412551/cti
third-party-advisory
https://vuldb.com/cve/CVE-2026-103687
third-party-advisory
https://vuldb.com/submit/958345
exploit
https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-cjfg-j8jp-5xvc
patch
https://github.com/rhukster/dom-sanitizer/commit/139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a
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