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 4 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.

1,764exploited flaws on CISA’s list
35added in the last 30 days
457new WordPress flaws this week
390,714entries in the database

11 results

  • Aug 21, 2026FORT Validator is a Resource Public Key Infrastructure (RPKI) relying-party validator that produces validated route-origin data.CVE-2026-53499 · Other software · NICMx · reported by GitHubHigh 7.2

    FORT Validator is a Resource Public Key Infrastructure (RPKI) relying-party validator that produces validated route-origin data. FORT Validator versions through 1.6.7 contain an origin-validation error in their RRDP processing: a delegated CA under the same Trust Anchor Locator (TAL) can reference a victim CA’s public RRDP notification and snapshot URLs, causing FORT’s URL-based download cache to report success after deleting the victim’s local snapshot. Following a routine victim publication, this can silently remove the victim’s VRPs and other signed objects from FORT’s output, potentially enabling route hijacking or loss of reachability. Version 1.6.8 contains a patch that rejects cross-origin RRDP snapshot and delta URLs; as a workaround, administrators can disable HTTP/RRDP with  --http.enabled=false  while keeping rsync enabled, although this can leave data unavailable or stale where rsync is not supported.

    Product
    FORT-validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 22, 2024An integer underflow was discovered in Fort 1.6.3 and 1.6.4 before 1.6.5.CVE-2024-56375 · Other software · nicmx · reported by MITREHigh 7.5

    An integer underflow was discovered in Fort 1.6.3 and 1.6.4 before 1.6.5. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a Manifest RPKI object containing an empty fileList. Fort dereferences (and, shortly afterwards, writes to) this array during a shuffle attempt, before the validation that would normally reject it when empty. This out-of-bounds access is caused by an integer underflow that causes the surrounding loop to iterate infinitely. Because the product is permanently stuck attempting to overshuffle an array that doesn't actually exist, a crash is nearly guaranteed.

    Product
    fort-validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 18, 2024A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0.CVE-2024-56170 · Other software · Nicmx · reported by MITREMedium 5.3

    A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0. RPKI manifests are listings of relevant files that clients are supposed to verify. Assuming everything else is correct, the most recent version of a manifest should be prioritized over other versions, to prevent replays, accidental or otherwise. Manifests contain the manifestNumber and thisUpdate fields, which can be used to gauge the relevance of a given manifest, when compared to other manifests. The former is a serial-like sequential number, and the latter is the date on which the manifest was created. However, the product does not compare the up-to-dateness of the most recently fetched manifest against the cached manifest. As such, it's prone to a rollback to a previous version if it's served a valid outdated manifest. This leads to outdated route origin validation.

    Product
    Fort-validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 18, 2024A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0.CVE-2024-56169 · Other software · Nicmx · reported by MITREMedium 5.3

    A validation integrity issue was discovered in Fort through 1.6.4 before 2.0.0. RPKI Relying Parties (such as Fort) are supposed to maintain a backup cache of the remote RPKI data. This can be employed as a fallback in case a new fetch fails or yields incorrect files. However, the product currently uses its cache merely as a bandwidth saving tool (because fetching is performed through deltas). If a fetch fails midway or yields incorrect files, there is no viable fallback. This leads to incomplete route origin validation data.

    Product
    Fort Validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 24, 2024An issue was discovered in Fort before 1.6.3.CVE-2024-45239 · Other software · Nicmx · reported by MITREHigh 7.5

    An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) an ROA or a Manifest containing a null eContent field. Fort dereferences the pointer without sanitizing it first. Because Fort is an RPKI Relying Party, a crash can lead to Route Origin Validation unavailability, which can lead to compromised routing.

    Product
    Fort-validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 24, 2024An issue was discovered in Fort before 1.6.3.CVE-2024-45238 · Other software · fort_validator_project · reported by MITREHigh 7.5

    An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a bit string that doesn't properly decode into a Subject Public Key. OpenSSL does not report this problem during parsing, and when compiled with OpenSSL libcrypto versions below 3, Fort recklessly dereferences the pointer. Because Fort is an RPKI Relying Party, a crash can lead to Route Origin Validation unavailability, which can lead to compromised routing.

    Product
    fort_validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 24, 2024An issue was discovered in Fort before 1.6.3.CVE-2024-45237 · Other software · fort_validator_project · reported by MITRECritical 9.8

    An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.

    Product
    fort_validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 24, 2024An issue was discovered in Fort before 1.6.3.CVE-2024-45236 · Other software · fort_validator_project · reported by MITREHigh 7.5

    An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a signed object containing an empty signedAttributes field. Fort accesses the set's elements without sanitizing it first. Because Fort is an RPKI Relying Party, a crash can lead to Route Origin Validation unavailability, which can lead to compromised routing.

    Product
    fort_validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 24, 2024An issue was discovered in Fort before 1.6.3.CVE-2024-45235 · Other software · fort_validator_project · reported by MITREHigh 7.5

    An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing an Authority Key Identifier extension that lacks the keyIdentifier field. Fort references this pointer without sanitizing it first. Because Fort is an RPKI Relying Party, a crash can lead to Route Origin Validation unavailability, which can lead to compromised routing.

    Product
    fort_validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 24, 2024An issue was discovered in Fort before 1.6.3.CVE-2024-45234 · Other software · Nicmx · reported by MITREHigh 7.5

    An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) an ROA or a Manifest containing a signedAttrs encoded in non-canonical form. This bypasses Fort's BER decoder, reaching a point in the code that panics when faced with data not encoded in DER. Because Fort is an RPKI Relying Party, a panic can lead to Route Origin Validation unavailability, which can lead to compromised routing.

    Product
    Fort-validator
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 9, 2021FORT Validator versions prior to 1.5.2 will crash if an RPKI CA publishes an X.509 EE certificate.CVE-2021-43114 · Other software · Fort Validator Project · reported by MITREHigh 7.5

    FORT Validator versions prior to 1.5.2 will crash if an RPKI CA publishes an X.509 EE certificate. This will lead to RTR clients such as BGP routers to lose access to the RPKI VRP data set, effectively disabling Route Origin Validation.

    Product
    Fort Validator
    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.