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 3 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

  • Sep 26, 2026stoatchat before 0.15.5 fails to validate that MFA tickets belong to the authenticated user, allowing attackers to bypass MFA by using their own valid ticket wiCVE-2026-100679 · Other software · stoatchat · reported by VulnCheckHigh 7.1

    stoatchat before 0.15.5 fails to validate that MFA tickets belong to the authenticated user, allowing attackers to bypass MFA by using their own valid ticket with another user's session token. Attackers can obtain a ticket from their own account and use it with a victim's session token to disable TOTP, view recovery codes, or perform other sensitive operations without providing the victim's credentials.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 26, 2026stoatchat before 0.15.5 fails to enforce account-level attempt limits on MFA login challenges, allowing attackers who know a password to guess TOTP codes with oCVE-2026-100678 · Other software · stoatchat · reported by VulnCheckHigh 8.3

    stoatchat before 0.15.5 fails to enforce account-level attempt limits on MFA login challenges, allowing attackers who know a password to guess TOTP codes with only IP-based rate limiting. Attackers can reuse MFA challenge tickets across multiple failed attempts and distribute guesses across IP addresses to bypass rate limiting and gain account access.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 26, 2026stoatchat before 0.15.5 contains an account enumeration vulnerability in the login endpoint that exposes source file locations in error responses.CVE-2026-100677 · Other software · stoatchat · reported by VulnCheckMedium 6.9

    stoatchat before 0.15.5 contains an account enumeration vulnerability in the login endpoint that exposes source file locations in error responses. Unauthenticated attackers can distinguish between registered and unregistered email addresses by comparing error location fields returned from POST /api/auth/session/login requests.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 26, 2026January, the media proxy/embed service of stoatchat (stoatchat/stoatchat), before version 0.15.5 improperly resolves SVG <image href> values as local filesystemCVE-2026-100676 · Other software · stoatchat · reported by VulnCheckHigh 8.8

    January, the media proxy/embed service of stoatchat (stoatchat/stoatchat), before version 0.15.5 improperly resolves SVG <image href> values as local filesystem paths when a fetched resource is served as image/svg+xml. An unauthenticated remote attacker who causes the service to proxy an attacker-hosted SVG (e.g. via the /proxy endpoint) can determine whether local files exist through observable response-time differences, and can cause supported local image files to be disclosed after re-encoding. Because each referenced file is read in full with no effective limit on the number or total volume of reads, a single request can also generate an unbounded amount of local filesystem I/O and memory pressure (the published proof of concept drives about 4.34 GB of reads), leading to denial of service. The issue is fixed in 0.15.5.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 26, 2026stoatchat versions before 0.15.5 contain a denial of service vulnerability in the acknowledgement worker that processes mass mention messages.CVE-2026-100675 · Other software · stoatchat · reported by VulnCheckHigh 7.1

    stoatchat versions before 0.15.5 contain a denial of service vulnerability in the acknowledgement worker that processes mass mention messages. Authenticated users can send five crafted role-mention messages to terminate all acknowledgement workers, disabling push notifications and mention badges deployment-wide until the API process restarts.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 26, 2026stoatchat before 0.15.5 fails to revalidate usernames after Unicode sanitization, allowing attackers to create usernames with forbidden characters by submittingCVE-2026-100674 · Other software · stoatchat · reported by VulnCheckMedium 5.3

    stoatchat before 0.15.5 fails to revalidate usernames after Unicode sanitization, allowing attackers to create usernames with forbidden characters by submitting Unicode letters that transform into rejected characters. Attackers can bypass character allowlists and length limits to create reserved-name lookalikes, embed special characters, and exceed the 32-character storage limit.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 17, 2026stoatchat before 0.15.0 contains a missing authorization vulnerability in the Subscribe message handler that allows authenticated attackers to enumerate membersCVE-2026-74869 · Other software · stoatchat · reported by VulnCheckHigh 8.3

    stoatchat before 0.15.0 contains a missing authorization vulnerability in the Subscribe message handler that allows authenticated attackers to enumerate members and monitor profile updates of private servers without membership. Attackers can subscribe to any server's member-update topic by sending a Subscribe message with an arbitrary server ID, receiving live UserUpdate events including display names, avatars, and status changes for members they should not have access to.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 16, 2026stoatchat before 0.15.0 contains a permission bypass vulnerability in the message_fetch route that checks only ViewChannel permission instead of requiring ReadMCVE-2026-73059 · Other software · stoatchat · reported by VulnCheckHigh 7.1

    stoatchat before 0.15.0 contains a permission bypass vulnerability in the message_fetch route that checks only ViewChannel permission instead of requiring ReadMessageHistory. Attackers with ViewChannel access but ReadMessageHistory denied can retrieve individual message content by ID, bypassing the intended history restriction enforced by bulk read routes.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 16, 2026stoatchat versions before 0.15.0 fail to block the IPv6 unspecified address (::) in the SSRF blocklist, allowing unauthenticated attackers to bypass protectionsCVE-2026-73058 · Other software · stoatchat · reported by VulnCheckMedium 6.9

    stoatchat versions before 0.15.0 fail to block the IPv6 unspecified address (::) in the SSRF blocklist, allowing unauthenticated attackers to bypass protections via the /proxy and /embed endpoints. Attackers can craft requests using IPv6 literal syntax to access services on the loopback interface and retrieve sensitive internal content.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 16, 2026stoatchat before 0.15.0 fails to validate SVG viewBox dimensions in the proxy endpoint, allowing attackers to cause denial of service by memory exhaustion.CVE-2026-73057 · Other software · stoatchat · reported by VulnCheckHigh 8.7

    stoatchat before 0.15.0 fails to validate SVG viewBox dimensions in the proxy endpoint, allowing attackers to cause denial of service by memory exhaustion. Attackers can host malicious SVGs with extremely large width and height values and trigger concurrent requests to exhaust available memory across proxy replicas.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 18, 2026Stoat for Android exports the chat.stoat.activities.ShareTargetActivity component (reachable to any process on the device via the android.intent.action.SEND intCVE-2026-57848 · Other software · stoatchat · reported by VulnCheckMedium 6.8

    Stoat for Android exports the chat.stoat.activities.ShareTargetActivity component (reachable to any process on the device via the android.intent.action.SEND intent) and accepts the file to share as a URI supplied through the android.intent.extra.STREAM extra. The activity does not validate or filter the incoming URI before using it as the outgoing attachment, so a caller can pass a file:// URI pointing at the application's own internal storage (for example /data/data/chat.revolt/databases/revolt.db, cached authentication token files, or preferences) and have the app treat that internal file as a user-selected attachment. An attacker who can invoke intents on the victim's device (via ADB access, a co-installed malicious application, or any other route that reaches Android's intent dispatch) can launch ShareTargetActivity with such a URI and cause the victim, on a single channel-selection interaction, to send the internal file to any Stoat channel or user of the attacker's choosing. The composer displays the attachment as \"attachment\" with no filename indication, so the victim has no visible signal that the file being sent is their own internal application data. Consequences includ

    Product
    Stoat for Android
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 16, 2026stoatchat before 0.14.0 contains a server-side request forgery (SSRF) vulnerability that allows unauthenticated network-accessible attackers to bypass the DNS-bCVE-2026-63088 · Other software · stoatchat · reported by VulnCheckHigh 7.7

    stoatchat before 0.14.0 contains a server-side request forgery (SSRF) vulnerability that allows unauthenticated network-accessible attackers to bypass the DNS-based IP blocklist by exploiting incomplete address validation in the url_is_blacklisted function, which inspects only the first resolved address while the underlying HTTP client iterates all cached addresses.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 16, 2026stoatchat before 0.13.5 contains an unauthenticated server-side request forgery vulnerability in the /proxy and /embed endpoints that accept arbitrary URLs withCVE-2026-63306 · Other software · stoatchat · reported by VulnCheckCritical 9.2

    stoatchat before 0.13.5 contains an unauthenticated server-side request forgery vulnerability in the /proxy and /embed endpoints that accept arbitrary URLs without DNS resolution filtering or private IP range validation. Attackers can enumerate internal services, fingerprint applications, and reach instance metadata endpoints by supplying malicious URLs or leveraging redirect chains to access internal infrastructure.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 16, 2026stoatchat (delta/Revolt) versions from 20241213-1 before 20250210-1 allow users with only ViewChannel (read) permission on a channel to fetch that channel's webCVE-2025-71388 · Other software · stoatchat · reported by VulnCheckHigh 7.6

    stoatchat (delta/Revolt) versions from 20241213-1 before 20250210-1 allow users with only ViewChannel (read) permission on a channel to fetch that channel's webhooks, including their tokens, because the webhook fetch endpoint checked for ViewChannel instead of ManageWebhooks. Using a retrieved token, an attacker can send arbitrary messages to the channel, bypassing channel permissions and impersonating a bot or webhook. Fixed in 20250210-1 (0.8.2).

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 16, 2026stoatchat (delta) versions before 20250210-1 (0.8.2) contain a logic error in the query messages route.CVE-2025-71377 · Other software · stoatchat · reported by VulnCheckHigh 8.7

    stoatchat (delta) versions before 20250210-1 (0.8.2) contain a logic error in the query messages route. When fetching messages 'nearby' another message, the database query can be given a message limit of zero, which the database interprets as 'no limit'. A remote unauthenticated attacker can craft nearby message fetch requests to download an entire channel's message history in a single expensive request, and can send many such requests in parallel, resulting in denial of service through resource exhaustion.

    Product
    stoatchat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 16, 2026stoatchat versions before 0.7.8 fail to enforce account creation restrictions including invite-only mode, email verification, captcha, and shield verification.CVE-2024-58360 · Other software · stoatchat · reported by VulnCheckMedium 6.9

    stoatchat versions before 0.7.8 fail to enforce account creation restrictions including invite-only mode, email verification, captcha, and shield verification. Attackers can create unlimited accounts with unverified email addresses, increasing denial-of-service risk and compromising service integrity.

    Product
    stoatchat
    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.

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