Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
4 results
Aug 28, 2026An issue in the JsonSanitizer.sanitize() component of OWASP json-sanitizer v1.2.3 allows attackers to cause a Denial of Service (DoS) via a crafted input.CVE-2026-37736 · Other software · reported by MITREHigh 7.5
An issue in the JsonSanitizer.sanitize() component of OWASP json-sanitizer v1.2.3 allows attackers to cause a Denial of Service (DoS) via a crafted input.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 13, 2021OWASP json-sanitizer before 1.2.2 can output invalid JSON or throw an undeclared exception for crafted input.CVE-2021-23900 · Other software · Owasp · reported by MITREHigh 7.5
OWASP json-sanitizer before 1.2.2 can output invalid JSON or throw an undeclared exception for crafted input. This may lead to denial of service if the application is not prepared to handle these situations.
- Product
- Json-sanitizer
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 13, 2021OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input.CVE-2021-23899 · Other software · Owasp · reported by MITRECritical 9.8
OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.
- Product
- Json-sanitizer
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2020OWASP json-sanitizer before 1.2.1 allows XSS.CVE-2020-13973 · Other software · Owasp · reported by MITREMedium 6.1
OWASP json-sanitizer before 1.2.1 allows XSS. An attacker who controls a substring of the input JSON, and controls another substring adjacent to a SCRIPT element in which the output is embedded as JavaScript, may be able to confuse the HTML parser as to where the SCRIPT element ends, and cause non-script content to be interpreted as JavaScript.
- Product
- Json-sanitizer
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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