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 5 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

273 results · page 6 of 6

  • Jan 12, 2005Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397) URL, which causes the URL to be obscured in a download dialogCVE-2005-0456 · Computers, phones & browsers · Opera · reported by MITREMedium 5

    Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397) URL, which causes the URL to be obscured in a download dialog, which may allow remote attackers to trick users into executing arbitrary code.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 10, 2005Opera 7.x up to 7.54, and possibly other versions, allows remote attackers to spoof arbitrary web sites by injecting content from one window into a target windoCVE-2004-1157 · Computers, phones & browsers · Opera · reported by MITREHigh 7.5

    Opera 7.x up to 7.54, and possibly other versions, allows remote attackers to spoof arbitrary web sites by injecting content from one window into a target window whose name is known but resides in a different domain, as demonstrated using a pop-up window on a trusted web site, aka the "window injection" vulnerability.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 10, 2005Opera 7.54 allows remote attackers to cause a denial of service (application crash from memory exhaustion), as demonstrated using Javascript code that continuouCVE-2004-1201 · Computers, phones & browsers · Opera · reported by MITREMedium 5

    Opera 7.54 allows remote attackers to cause a denial of service (application crash from memory exhaustion), as demonstrated using Javascript code that continuously creates nested arrays and then sorts the newly created arrays.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004Opera 7.54 and earlier allows remote attackers to spoof file types in the download dialog via dots and non-breaking spaces (ASCII character code 160) in the (1)CVE-2004-1490 · Computers, phones & browsers · Opera · reported by MITRELow 2.6

    Opera 7.54 and earlier allows remote attackers to spoof file types in the download dialog via dots and non-breaking spaces (ASCII character code 160) in the (1) Content-Disposition or (2) Content-Type headers.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004Opera 7.54 and earlier does not properly limit an applet's access to internal Java packages from Sun, which allows remote attackers to gain sensitive informatioCVE-2004-1489 · Computers, phones & browsers · Opera · reported by MITRELow 2.6

    Opera 7.54 and earlier does not properly limit an applet's access to internal Java packages from Sun, which allows remote attackers to gain sensitive information, such as user names and the installation directory.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004Opera before 7.54 allows remote attackers to modify properties and methods of the location object and execute Javascript to read arbitrary files from the clientCVE-2004-2570 · Computers, phones & browsers · Opera · reported by MITREMedium 5

    Opera before 7.54 allows remote attackers to modify properties and methods of the location object and execute Javascript to read arbitrary files from the client's local filesystem or display a false URL to the user.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004The Javascript engine in Opera 7.23 allows remote attackers to cause a denial of service (crash) by creating a new Array object with a large size value, then wrCVE-2004-1810 · Computers, phones & browsers · Opera · reported by MITREMedium 5

    The Javascript engine in Opera 7.23 allows remote attackers to cause a denial of service (crash) by creating a new Array object with a large size value, then writing into that array.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004Opera Browser 7.23, and other versions before 7.50, updates the address bar as soon as the user clicks a link, which allows remote attackers to redirect to otheCVE-2004-2260 · Computers, phones & browsers · Opera · reported by MITREMedium 5

    Opera Browser 7.23, and other versions before 7.50, updates the address bar as soon as the user clicks a link, which allows remote attackers to redirect to other sites via the onUnload attribute.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004A race condition in Opera web browser 7.53 Build 3850 causes Opera to fill in the address bar before the page has been loaded, which allows remote attackers to CVE-2004-2491 · Computers, phones & browsers · Opera · reported by MITRELow 2.6

    A race condition in Opera web browser 7.53 Build 3850 causes Opera to fill in the address bar before the page has been loaded, which allows remote attackers to spoof the URL in the address bar via the window.open and location.replace HTML parameters, which facilitates phishing attacks.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004Opera 7.54 and earlier uses kfmclient exec to handle unknown MIME types, which allows remote attackers to execute arbitrary code via a shortcut or launcher thatCVE-2004-1491 · Computers, phones & browsers · Opera · reported by MITREMedium 5

    Opera 7.54 and earlier uses kfmclient exec to handle unknown MIME types, which allows remote attackers to execute arbitrary code via a shortcut or launcher that contains an Exec entry.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 18, 2004Opera allows remote attackers to cause a denial of service (invalid memory reference and application crash) via a web page or HTML email that contains a TBODY tCVE-2004-1615 · Computers, phones & browsers · Opera · reported by MITRELow 2.6

    Opera allows remote attackers to cause a denial of service (invalid memory reference and application crash) via a web page or HTML email that contains a TBODY tag with a large COL SPAN value, as demonstrated by mangleme.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 16, 2004Opera does not prevent cookies that are sent over an insecure channel (HTTP) from also being sent over a secure channel (HTTPS/SSL) in the same domain, which coCVE-2004-0872 · Computers, phones & browsers · Opera · reported by MITREMedium 5

    Opera does not prevent cookies that are sent over an insecure channel (HTTP) from also being sent over a secure channel (HTTPS/SSL) in the same domain, which could allow remote attackers to steal cookies and conduct unauthorized activities, aka "Cross Security Boundary Cookie Injection."

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 6, 2004Opera 7.50 and earlier allows remote web sites to provide a "Shortcut Icon" (favicon) that is wider than expected, which could allow the web sites to spoof a trCVE-2004-0537 · Computers, phones & browsers · Opera · reported by MITREMedium 5

    Opera 7.50 and earlier allows remote web sites to provide a "Shortcut Icon" (favicon) that is wider than expected, which could allow the web sites to spoof a trusted domain and facilitate phishing attacks using a wide icon and extra spaces.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 27, 2004Opera 7.51 for Windows and 7.50 for Linux does not properly prevent a frame in one domain from injecting content into a frame that belongs to another domain, whCVE-2004-0717 · Computers, phones & browsers · Opera · reported by MITREHigh 7.5

    Opera 7.51 for Windows and 7.50 for Linux does not properly prevent a frame in one domain from injecting content into a frame that belongs to another domain, which facilitates web site spoofing and other attacks, aka the frame injection vulnerability.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 7, 2004Argument injection vulnerability in Opera before 7.50 does not properly filter "-" characters that begin a hostname in a telnet URI, which allows remote attackeCVE-2004-0473 · Computers, phones & browsers · Opera · reported by MITRELow 2.6

    Argument injection vulnerability in Opera before 7.50 does not properly filter "-" characters that begin a hostname in a telnet URI, which allows remote attackers to insert options to the resulting command line and overwrite arbitrary files via (1) the "-f" option on Windows XP or (2) the "-n" option on Linux.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 15, 2004Opera allows remote attackers to bypass intended cookie access restrictions on a web application via "%2e%2e" (encoded dot dot) directory traversal sequences inCVE-2003-0593 · Computers, phones & browsers · Opera · reported by MITREHigh 7.5

    Opera allows remote attackers to bypass intended cookie access restrictions on a web application via "%2e%2e" (encoded dot dot) directory traversal sequences in a URL, which causes Opera to send the cookie outside the specified URL subsets, e.g. to a vulnerable application that runs on the same server as the target application.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 11, 2004Opera Web Browser 7.0 through 7.23 allows remote attackers to trick users into executing a malicious file by embedding a CLSID in the file name, which causes thCVE-2004-2083 · Computers, phones & browsers · Opera · reported by MITRELow 2.6

    Opera Web Browser 7.0 through 7.23 allows remote attackers to trick users into executing a malicious file by embedding a CLSID in the file name, which causes the malicious file to appear as a trusted file type, aka "File Download Extension Spoofing."

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2003Buffer overflow in Opera 7.02 Build 2668 allows remote attackers to crash Opera via a long HTTP request ending in a .ZIP extension.CVE-2003-1388 · Computers, phones & browsers · Opera · reported by MITREHigh 9.3

    Buffer overflow in Opera 7.02 Build 2668 allows remote attackers to crash Opera via a long HTTP request ending in a .ZIP extension.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2003Buffer overflow in Opera 6.05 and 6.06, and possibly other versions, allows remote attackers to execute arbitrary code via a URL with a long username.CVE-2003-1387 · Computers, phones & browsers · Opera · reported by MITREHigh 7.5

    Buffer overflow in Opera 6.05 and 6.06, and possibly other versions, allows remote attackers to execute arbitrary code via a URL with a long username.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2003The PluginContext object of Opera 6.05 and 7.0 allows remote attackers to cause a denial of service (crash) via an HTTP request containing a long string that geCVE-2003-1397 · Computers, phones & browsers · Opera · reported by MITREMedium 4.3

    The PluginContext object of Opera 6.05 and 7.0 allows remote attackers to cause a denial of service (crash) via an HTTP request containing a long string that gets passed to the ShowDocument method.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2003Cross-site scripting (XSS) vulnerability in Opera 6.0 through 7.0 with automatic redirection disabled allows remote attackers to inject arbitrary web script or CVE-2003-1420 · Computers, phones & browsers · Opera · reported by MITREMedium 4.3

    Cross-site scripting (XSS) vulnerability in Opera 6.0 through 7.0 with automatic redirection disabled allows remote attackers to inject arbitrary web script or HTML via the HTTP Location header.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2003Heap-based buffer overflow in Opera 6.05 through 7.10 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a filCVE-2003-1396 · Computers, phones & browsers · Opera · reported by MITREMedium 6.8

    Heap-based buffer overflow in Opera 6.05 through 7.10 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a filename with a long extension.

    Product
    Opera Browser
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 17, 2003Heap-based buffer overflow in Opera 7.11 and 7.20 allows remote attackers to execute arbitrary code via an HREF with a large number of escaped characters in theCVE-2003-0870 · Computers, phones & browsers · Opera · reported by MITREHigh 7.5

    Heap-based buffer overflow in Opera 7.11 and 7.20 allows remote attackers to execute arbitrary code via an HREF with a large number of escaped characters in the server name.

    Product
    Opera Browser
    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.