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
Sep 14, 2026The LdapAuth and LinOTPAuth authentication plugins in MISP contain an authentication bypass vulnerability.CVE-2026-90961 · Other software · MISP · reported by 5a6e4751-2f3f-4070-9419-94fb35b644e8Critical 9.3
The LdapAuth and LinOTPAuth authentication plugins in MISP contain an authentication bypass vulnerability. Both LdapAuthenticate and LinOTPAuthenticate replace CakePHP's FormAuthenticate class but fail to replicate its _checkFields() input validation guard. As a result, the email and password fields extracted from the login request are passed to downstream authentication logic without verifying that they are non-empty strings. In the LDAP authenticator, an empty or null password is forwarded to ldap_bind(). Per RFC 4513 section 5.1.2, a bind request with a valid DN and an empty password constitutes an unauthenticated bind, which many LDAP directory servers accept as successful. An attacker who knows any valid user email address in the directory can therefore authenticate as that user without possessing a password. Additionally, non-string values (null, false, arrays) are either coerced to empty strings by ldap_bind(), raise TypeErrors, or are misinterpreted as find conditions in _findUser(), all of which can lead to unintended authentication outcomes. In the LinOTP authenticator, the same missing guard allows non-string credentials to be concatenated into the LinOTP verification
- Product
- MISP
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 3, 2026MISP contains an authentication bypass vulnerability in its LDAP and LinOTP authentication components due to insufficient validation of user-supplied credentialCVE-2026-85216 · Other software · misp · reported by 5a6e4751-2f3f-4070-9419-94fb35b644e8Critical 9.5
MISP contains an authentication bypass vulnerability in its LDAP and LinOTP authentication components due to insufficient validation of user-supplied credentials. The custom LdapAuthenticate and LinOTPAuthenticate components replace CakePHP's FormAuthenticate implementation but did not replicate its credential validation checks. As a result, empty or non-string values could reach the underlying authentication mechanisms. In the LDAP authentication path, an attacker able to identify a valid directory user's email address could submit an empty password. The empty credential could be passed to ldap_bind(), where an LDAP server accepting unauthenticated binds may return a successful result for a valid distinguished name combined with an empty password. MISP could consequently treat the attacker as the corresponding authenticated directory user without verification of the user's password. The issue also affected the LinOTP authentication component. Invalid credential types were not rejected before being processed, and when mixed authentication was enabled, an empty password could be checked against a locally stored MISP password hash. LDAP-provisioned MISP accounts could additionally
- Product
- misp
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 19, 2023Defective request context handling in Self Service in LinOTP 3.x before 3.2.5 allows remote unauthenticated attackers to escalate privileges, thereby allowing tCVE-2023-49706 · Other software · Linotp · reported by MITREMedium 6.8
Defective request context handling in Self Service in LinOTP 3.x before 3.2.5 allows remote unauthenticated attackers to escalate privileges, thereby allowing them to act as and with the permissions of another user. Attackers must generate repeated API requests to trigger a race condition with concurrent user activity in the self-service portal.
- Product
- Linotp
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 27, 2019KeyIdentity LinOTP before 2.10.5.3 has Incorrect Access Control (issue 1 of 2).CVE-2019-12887 · Other software · Keyidentity · reported by MITREHigh 8.1
KeyIdentity LinOTP before 2.10.5.3 has Incorrect Access Control (issue 1 of 2).
- Product
- Linotp
- 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.
Weekly security brief
The flaws that hit local websites, every Friday.
One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.