Security Vulnerabilities
Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs This vulnerability affects Firefox for iOS < 143.1.
CVSS Score
4.0
EPSS Score
0.0
Published
2025-09-30
This vulnerability affects Firefox < 143.0.3.
CVSS Score
8.6
EPSS Score
0.0
Published
2025-09-30
This vulnerability affects Firefox < 143.0.3.
CVSS Score
7.5
EPSS Score
0.0
Published
2025-09-30
FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below are vulnerable to directory enumeration by setting path in theme field, allowing attackers to gain additional information about the server by checking if certain directories exist. This issue is fixed in version 1.27.0.
CVSS Score
5.3
EPSS Score
0.001
Published
2025-09-30
FreshRSS is a free, self-hostable RSS aggregator. In versions 1.26.3 and below, due to a bypass of double clickjacking protection (confirmation dialog), it is possible to trick the admin into clicking the Promote button in another user's management page after the admin double clicks on a button inside an attacker-controlled website. A successful attack can allow the attacker to promote themselves to "admin" and log into other users' accounts; the attacker has to know the specific instance URL they're targeting. This issue is fixed in version 1.27.0.
CVSS Score
6.7
EPSS Score
0.0
Published
2025-09-30
FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below do not sanitize certain event handler attributes in feed content, so by finding a page that renders feed entries without CSP, it is possible to execute an XSS payload. The Allow API access authentication setting needs to be enabled by the instance administrator beforehand for the attack to work as it relies on api/query.php. An account takeover is possible by sending a change password request via the XSS payload / setting UserJS for persistence / stealing the autofill password / displaying a phishing page with a spoofed URL using history.replaceState()
If the victim is an administrator, the attacker can also perform administrative actions. This issue is fixed in version 1.27.0.
CVSS Score
6.7
EPSS Score
0.0
Published
2025-09-29
FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below do not properly terminate the session during logout. After a user logs out, the session cookie remains active and unchanged. The unchanged cookie could be reused by an attacker if a new session were to be started. This failure to invalidate the session can lead to session hijacking and fixation vulnerabilities. This issue is fixed in version 1.27.0
CVSS Score
9.8
EPSS Score
0.001
Published
2025-09-29
FreshRSS is a free, self-hostable RSS aggregator. In versions 1.16.0 and above through 1.26.3, an unprivileged attacker can create a new admin user when registration is enabled through the use of a hidden field used only in the user management admin page, new_user_is_admin. This is fixed in version 1.27.0.
CVSS Score
9.8
EPSS Score
0.001
Published
2025-09-29
FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below contain a vulnerability where a specially crafted page can trick a user into executing arbitrary JS code or promoting a user in FreshRSS by obscuring UI elements in iframes. If embedding an authenticated iframe is possible, this may lead to privilege escalation via obscuring the promote user button in the admin UI or XSS by tricking the user to drag content into the UserJS text area. This is fixed in version 1.27.0
CVSS Score
6.1
EPSS Score
0.0
Published
2025-09-29
FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below expose information about feeds and tags of default admin users, due to lack of access checking in the FreshRSS_Auth::hasAccess() function used by some of the tag/feed related endpoints. FreshRSS controllers usually have a defined firstAction() method with an override to make sure that every action requires access. If one doesn't, then every action has to check for access manually, and certain endpoints use neither the firstAction() method, or do they perform a manual access check. This issue is fixed in version 1.27.0.
CVSS Score
7.5
EPSS Score
0.0
Published
2025-09-29