CVE-2026-107764SiteOrigin CSS <= 1.6.7 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment Author URL via Inspector href Sink
Updated under an hour ago ()
Does this affect you?
It affects gpriday SiteOrigin CSS. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.24%, higher than 14% of scored CVEs.
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The SiteOrigin CSS plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'url (comment_author_url)' parameter in all versions up to, and including, 1.6.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is possible because WordPress core's esc_url() preserves HTML entity-encoded characters, allowing a crafted entity-encoded payload in the comment 'Website' field to survive storage and be DOM-decoded by the browser into executable markup at the sink.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.24% (percentile 14)
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 16, 2026
Affected products
gpriday SiteOrigin CSS gpriday:siteorigin_css (from the name) | through 1.6.7 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b0ff9652-1b45-43d6-949a-92bfeaee96d3?source=cve
- https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.6/js/inspector.js#L280
- https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.6/so-css.php#L69
- https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.6/so-css.php#L899
- https://github.com/siteorigin/so-css/compare/1.6.7...1.6.8
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.