Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 2 h ago

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.

1,762exploited flaws on CISA’s list
34added in the last 30 days
344new WordPress flaws this week
390,080entries in the database

16 results

  • Apr 13, 2026Improper check for exceptional conditions in Device Care prior to SMR Apr-2026 Release 1 allows physical attackers to bypass Knox Guard.CVE-2026-21007 · Computers, phones & browsers · Samsung Mobile · reported by mobile.security@samsung.comMedium 4.4

    Improper check for exceptional conditions in Device Care prior to SMR Apr-2026 Release 1 allows physical attackers to bypass Knox Guard.

    Product
    Samsung Mobile Devices
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 8, 2024Improper check for exception conditions in Knox Guard prior to SMR Oct-2024 Release 1 allows physical attackers to bypass Knox Guard in a multi-user environmentCVE-2024-34664 · Computers, phones & browsers · Samsung Mobile · reported by mobile.security@samsung.comMedium 4.1

    Improper check for exception conditions in Knox Guard prior to SMR Oct-2024 Release 1 allows physical attackers to bypass Knox Guard in a multi-user environment.

    Product
    Samsung Mobile Devices
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 4, 2023Improper exception management vulnerability in Knox Guard prior to SMR Dec-2023 Release 1 allows Knox Guard lock bypass via changing system time.CVE-2023-42559 · Computers, phones & browsers · Samsung Mobile · reported by mobile.security@samsung.comMedium 4.9

    Improper exception management vulnerability in Knox Guard prior to SMR Dec-2023 Release 1 allows Knox Guard lock bypass via changing system time.

    Product
    Samsung Mobile Devices
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 2, 2023Users were able to set an arbitrary "product name" for OX Guard.CVE-2023-26456 · Other software · OX Software GmbH · reported by security@open-xchange.comMedium 5.4

    Users were able to set an arbitrary "product name" for OX Guard. The chosen value was not sufficiently sanitized before processing it at the user interface, allowing for indirect cross-site scripting attacks. Accounts that were temporarily taken over could be configured to trigger persistent code execution, allowing an attacker to build a foothold. Sanitization is in place for product names now. No publicly available exploits are known.

    Product
    OX App Suite
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 10, 2022Incorrect implementation of Knox Guard prior to SMR Jan-2022 Release 1 allows physically proximate attackers to temporary unlock the Knox Guard via Samsung DeX CVE-2022-22268 · Computers, phones & browsers · Samsung Mobile · reported by mobile.security@samsung.comMedium 6.1

    Incorrect implementation of Knox Guard prior to SMR Jan-2022 Release 1 allows physically proximate attackers to temporary unlock the Knox Guard via Samsung DeX mode.

    Product
    Samsung Mobile Devices
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 30, 2021OX Guard 2.10.4 and earlier allows a Denial of Service via a WKS server that responds slowly or with a large amount of data.CVE-2020-28944 · Other software · Open-xchange · reported by MITREHigh 7.5

    OX Guard 2.10.4 and earlier allows a Denial of Service via a WKS server that responds slowly or with a large amount of data.

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 15, 2020OX Guard 2.10.3 and earlier allows SSRF.CVE-2020-9427 · Other software · Open-xchange · reported by MITREMedium 5

    OX Guard 2.10.3 and earlier allows SSRF.

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 15, 2020OX Guard 2.10.3 and earlier allows XSS.CVE-2020-9426 · Other software · Open-xchange · reported by MITREMedium 6.1

    OX Guard 2.10.3 and earlier allows XSS.

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 3, 2019OX Guard 2.8.0 has CSRF.CVE-2018-10986 · Other software · Open-xchange · reported by MITREHigh 8.8

    OX Guard 2.8.0 has CSRF.

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 15, 2016An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5.CVE-2016-6854 · Other software · Open-xchange · reported by MITREMedium 6.1

    An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code which got injected to a mail with inline PGP signature gets executed when verifying the signature. Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.).

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 15, 2016An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5.CVE-2016-6853 · Other software · Open-xchange · reported by MITREMedium 6.1

    An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code and references to external websites can be injected to the names of PGP public keys. When requesting that key later on using a specific URL, such script code might get executed. In case of injecting external websites, users might get lured into a phishing scheme. Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.).

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 15, 2016An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5.CVE-2016-6851 · Other software · Open-xchange · reported by MITREMedium 6.1

    An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code can be provided as parameter to the OX Guard guest reader web application. This allows cross-site scripting attacks against arbitrary users since no prior authentication is needed. Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.) in case the user has an active session on the same domain already.

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 15, 2016An issue was discovered in Open-Xchange OX Guard before 2.4.0-rev8.CVE-2016-4028 · Other software · Open-xchange · reported by MITREHigh 7.5

    An issue was discovered in Open-Xchange OX Guard before 2.4.0-rev8. OX Guard uses an authentication token to identify and transfer guest users' credentials. The OX Guard API acts as a padding oracle by responding with different error codes depending on whether the provided token matches the encryption padding. In combination with AES-CBC, this allows attackers to guess the correct padding. Attackers may run brute-forcing attacks on the content of the guest authentication token and discover user credentials. For a practical attack vector, the guest users needs to have logged in, the content of the guest user's "OxReaderID" cookie and the value of the "auth" parameter needs to be known to the attacker.

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 15, 2016An issue was discovered in Open-Xchange Guard before 2.2.0-rev8.CVE-2015-8542 · Other software · Open-xchange · reported by MITREHigh 8.8

    An issue was discovered in Open-Xchange Guard before 2.2.0-rev8. The "getprivkeybyid" API call is used to download a PGP Private Key for a specific user after providing authentication credentials. Clients provide the "id" and "cid" parameter to specify the current user by its user- and context-ID. The "auth" parameter contains a hashed password string which gets created by the client by asking the user to enter his or her OX Guard password. This parameter is used as single point of authentication when accessing PGP Private Keys. In case a user has set the same password as another user, it is possible to download another user's PGP Private Key by iterating the "id" and "cid" parameters. This kind of attack would also be able by brute-forcing login credentials, but since the "id" and "cid" parameters are sequential they are much easier to predict than a user's login name. At the same time, there are some obvious insecure standard passwords that are widely used. A attacker could send the hashed representation of typically weak passwords and randomly fetch Private Key of matching accounts. The attack can be executed by both internal users and "guests" which use the external mail reader

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 19, 2015Cross-site scripting (XSS) vulnerability in Open-Xchange OX Guard before 2.0.0-rev11 allows remote attackers to inject arbitrary web script or HTML via the uid CVE-2015-7385 · Other software · Open-xchange · reported by MITREMedium 4.3

    Cross-site scripting (XSS) vulnerability in Open-Xchange OX Guard before 2.0.0-rev11 allows remote attackers to inject arbitrary web script or HTML via the uid field in a PGP public key, which is not properly handled in "Guard PGP Settings."

    Product
    OX Guard
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 28, 2015SQL injection vulnerability in the public key discovery API call in Open-Xchange OX Guard before 2.0.0-rev8 allows remote authenticated users to execute arbitraCVE-2015-5703 · Other software · Open-xchange OX Guard · reported by MITREMedium 6.5

    SQL injection vulnerability in the public key discovery API call in Open-Xchange OX Guard before 2.0.0-rev8 allows remote authenticated users to execute arbitrary SQL commands via unspecified vectors.

    Product
    Open-xchange OX Guard
    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.

Get in touch

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.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.