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.
10 results
Oct 28, 2026AnkiMCP is an Anki addon that implements an MCP server, enabling AI assistants to interact with the Anki flashcard application.CVE-2026-61546 · Other software · ankimcp · reported by GitHubHigh 8.8
AnkiMCP is an Anki addon that implements an MCP server, enabling AI assistants to interact with the Anki flashcard application. Prior to version 0.21.0, `anki_mcp_server/mcp_server.py` globally disables FastMCP DNS-rebinding protection through `TransportSecuritySettings` with `enable_dns_rebinding_protection=False`, including for the default local Streamable HTTP listener. The defaults in `anki_mcp_server/config.py` enable `http_enabled` on `127.0.0.1:3141`, with an empty `http_path` selecting the root endpoint. No bearer token, API key, session secret, strict `Host` allowlist or strict `Origin` allowlist is enforced before `initialize`, `tools/list` and `tools/call` reach MCP dispatch. A victim who visits a malicious web page while Anki and the listener are running can have browser requests rebound to loopback, allowing the attacker to `initialize` MCP, enumerate tools, read the local collection, and perform enabled non-destructive note/deck creation or updates. The attacker needs neither LAN position nor a local process. Available operations depend on enabled tool filters; destructive tools are hidden unless `enabled_destructive_tools` is opted into, limiting deletion-level impac
- Product
- anki-mcp-server-addon
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 26, 2026SiYuan before v3.8.4 does not HTML-escape stored flashcard block content before interpolating it into the card-manager list markup.CVE-2026-100641 · Other software · siyuan-note · reported by VulnCheckHigh 8.6
SiYuan before v3.8.4 does not HTML-escape stored flashcard block content before interpolating it into the card-manager list markup. Block content returned by /api/riff/getRiffCards is inserted into a card item template in app/src/card/viewCards.ts and assigned to listElement.innerHTML, so content such as <img src=invalid onerror=...> becomes an executable event-handler attribute. Because the SiYuan desktop (Electron) main window is created with nodeIntegration enabled and contextIsolation disabled, an administrator who opens the card manager on a workspace containing attacker-supplied flashcard content (for example introduced through contribution or import) executes the attacker's script in a privileged renderer, which can lead to arbitrary code execution on the host. The affected endpoint remains behind authentication and administrator-role checks; this is an untrusted-content-to-privileged-renderer issue, not an authorization bypass.
- Product
- siyuan
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 6, 2026Anki is a program for creating and reviewing flashcards.CVE-2026-64677 · Other software · ankitects · reported by GitHubMedium 5.9
Anki is a program for creating and reviewing flashcards. Prior to 25.09.3, endpoints in Anki's local HTTP server do not adequately constrain requested media and built-in data paths, allowing scripts served from shared decks, or malicious websites combined with an origin-check bypass, to read local files through directory traversal. This issue is fixed in version 25.09.3.
- Product
- anki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 7, 2026Anki is a program for creating and reviewing flashcards.CVE-2026-59153 · Other software · ankitects · reported by GitHubLow 2.1
Anki is a program for creating and reviewing flashcards. Prior to 25.09.3, Anki launches a local HTTP server to serve media files and web pages for parts of its interface, but requests from other origins were not sufficiently blocked. A malicious website could potentially trigger side-effecting requests to the local server, with severity varying by browser depending on Private Network Access protections. This issue is fixed in version 25.09.3.
- Product
- anki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 7, 2026Anki is a program for creating and reviewing flashcards.CVE-2026-58266 · Other software · ankitects · reported by GitHubMedium 6.5
Anki is a program for creating and reviewing flashcards. Prior to 25.09.4, Anki's webview-based pages communicate with the Rust backend using an internal localhost API, and user scripts included via iframes in the editor can access this API despite protections intended to block reviewer and editor scripts. A malicious imported card package with an embedded iframe can use exposed API methods such as getImageForOcclusion to read arbitrary files accessible to the Anki process and exfiltrate them over the network. This issue is fixed in version 25.09.4.
- Product
- anki
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 7, 2026Flashcard: Path TraversalCVE-2025-14867 · WordPress plugins & themes · reported by WordfenceMedium 6.5
The Flashcard plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 0.9 via the 'source' attribute of the 'flashcard' shortcode. This makes it possible for authenticated attackers, with contributor level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.
- Product
- Flashcard
- Affected
- up to 0.9
- What to do
- Affects up to 0.9. Update Flashcard to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgwordfence.com
Jul 23, 2025Qwizcards | online quizzes and flashcards: Does not sanitise and escape the "_stylesheet" parameter before outputting it back in the pageCVE-2025-6174 · WordPress plugins & themes · reported by WPScanMedium 6.1
The Qwizcards | online quizzes and flashcards WordPress plugin through 3.9.4 does not sanitise and escape the "_stylesheet" parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin or any other user.
- Product
- Qwizcards | online quizzes and flashcards
- Affected
- up to 3.9.4
- What to do
- Affects up to 3.9.4. Update Qwizcards | online quizzes and flashcards to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Jun 14, 2025Easy Flashcards: Cross-Site Request ForgeryCVE-2025-6040 · WordPress plugins & themes · reported by WordfenceMedium 6.1
The Easy Flashcards plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.1. This is due to missing or incorrect nonce validation on the 'ef_settings_submenu' page. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
- Product
- Easy Flashcards
- Affected
- up to 0.1
- What to do
- Affects up to 0.1. Update Easy Flashcards to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordwordpress.orgwordfence.com
Nov 8, 2021Qwizcards – online quizzes and flashcards: Does not properly sanitize and escape some of its settingsCVE-2021-24706 · WordPress plugins & themes · reported by WPScanMedium 4.8
The Qwizcards – online quizzes and flashcards WordPress plugin before 3.62 does not properly sanitize and escape some of its settings, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.
- Product
- Qwizcards – online quizzes and flashcards
- Fixed in
- 3.62
- What to do
- Update Qwizcards – online quizzes and flashcards to 3.62 or newer.
May 12, 2010Cross-site scripting (XSS) vulnerability in cPlayer.php in FlashCard 2.6.5 and 3.0.1 allows remote attackers to inject arbitrary web script or HTML via the id pCVE-2010-1872 · Other software · Tufat · reported by MITREMedium 4.3
Cross-site scripting (XSS) vulnerability in cPlayer.php in FlashCard 2.6.5 and 3.0.1 allows remote attackers to inject arbitrary web script or HTML via the id parameter. NOTE: some of these details are obtained from third party information.
- Product
- Flashcard
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpacketstormsecurity.orgsecunia.com
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.
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