core

OPNsense GUI and system management The OPNsense project invites developers to start contributing to the code base. For your own purposes or – even better – to join us in creating the best open source firewall available. The build process has been designed to make it easy for anyone to build and...

opnsense-lockout-factory-ip

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · opnsense-lockout-factory-ip opnsense-lockout-factory-ip Class: Privilege leftover Reach: Remote OPNsense core 26.7.6 a842fe48 - opnsense.org Unauth WebGUI login still drives lockouthandler from a factory LOGAUTH line...

opnsense-ntp-gps-fudge

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · opnsense-ntp-gps-fudge opnsense-ntp-gps-fudge Class: Config line injection Reach: Remote OPNsense core 26.7.6 a842fe48 - opnsense.org Leftover of GHSA-fq94. GPS/PPS fudge1 / fudge2 / refid still concatenate into...

opnsense-firmware-mirror-sed

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · opnsense-firmware-mirror-sed opnsense-firmware-mirror-sed Class: Signature skip Reach: Remote OPNsense core 26.7.6 a842fe48 - opnsense.org System: Firmware set POSTs a custom mirror / flavour. Core FILTERSANITIZEURL...

opnsense-wlan-wpa-line

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · opnsense-wlan-wpa-line opnsense-wlan-wpa-line Class: Config line injection Reach: Remote OPNsense core 26.7.6 a842fe48 - opnsense.org Leftover of GHSA-fq94. Wireless SSID got AllowNewlines=N. identity, passphrase, and...

opnsense-uidfield-system-uid0

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · opnsense-uidfield-system-uid0 opnsense-uidfield-system-uid0 Class: Privilege leftover Reach: Remote OPNsense core 26.7.6 a842fe48 - opnsense.org Delegated page-system-usermanager two-steps scope=system then uid=0...

opnsense-tunables-loader

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · opnsense-tunables-loader opnsense-tunables-loader Class: Config line injection Reach: Remote OPNsense core 26.7.6 a842fe48 - opnsense.org System: Advanced: Tunables still interpolates name/value into /boot/loader.conf...

opnsense-captive-lastseen-roam

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · opnsense-captive-lastseen-roam opnsense-captive-lastseen-roam Class: Network-access bypass Reach: Remote OPNsense core 26.7.6 a842fe48 - opnsense.org Captive-portal roaming still inherits a session for the newest...

CVE-2026-53582

https://blog.evan.lat/posts/opnsense/ https://git.evan.lat/e/CVE-2026-53582...

CVE-2026-57155

https://github.com/opnsense/core/security/advisories/GHSA-wjqq-rfmm-v5h3...

OPNsense - Cross-Site Scripting to RCE

There is a XSS in /ui/cron/item/open in the Cron component of OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 via openAction in app/controllers/OPNsense/Cron/ItemController.php. id: CVE-2023-39007 info: name: OPNsense - Cross-Site Scripting to RCE author: ritikchaddha...

OPNsense <=20.1.5 - Open Redirect

OPNsense through 20.1.5 contains an open redirect vulnerability via the url redirect parameter in the login page, which is not filtered. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations. id:...

OPNsense - Cross-Site Scripting

A cross-site scripting XSS vulnerability in the act parameter of systemcertmanager.php in OPNsense before 23.7 allows attackers to execute arbitrary web scripts or HTML via a crafted payload. id: CVE-2023-39002 info: name: OPNsense - Cross-Site Scripting author: Herry severity: medium description...

CVE-2026-71490

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.11, OPNsense\Core\ACL::hasPrivilege appends a directly assigned comma-separated value as one string and then uses an exact comparison when checking user-config-readonly. A user directly assigned both a component write...

CVE-2026-63442

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the unauthenticated WebGUI login usernamefld accepts carriage-return and line-feed characters that survive LOGAUTH processing through syslog-ng-lockout.conf into the syslog-ng program destination feeding...

CVE-2026-58392

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the NTP GPS page stores the operator-supplied initcmd value in base64 form, applies legacyhtmlescapeformdata to the encoded string, and then uses base64decode to decode the value directly into the GPS...

CVE-2026-58393

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the OpenVPN Client Specific Override commonname field accepts path traversal sequences and openvpncscconfwrite concatenates the value into /var/etc/openvpn-csc// without normalization or a basename check. The...

CVE-2026-58395

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the safe-delete path reached through ApiMutableModelControllerBase::delBase interpolates an unvalidated safe-delete token from the request URL into an XPath expression over config.xml before confirming that the...

CVE-2026-58394

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, src/www/systemadvancedadmin.php reads certificate records into $acert but omits that array from legacyhtmlescapeformdata before rendering each certificate descr value in the SSL Certificate selector. The...

CVE-2026-58391

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, Firewall Rules and NAT views place stored category names and alias descriptions into HTML title attributes in filterrule.volt and natrule.volt without quote-safe encoding. The response layer uses ENTNOQUOTES, so ...