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.
13 results
Jul 31, 2026@phun-ky/defaults-deep is a library like lodash defaultsDeep with array preservation and no lodash dependency.CVE-2026-54737 · Other software · phun-ky · reported by GitHubHigh 7.3
@phun-ky/defaults-deep is a library like lodash defaultsDeep with array preservation and no lodash dependency. Prior to 2.0.5, defaultsDeep() recursively merges user-supplied objects without filtering proto, constructor, and prototype, allowing properties to be written to Object.prototype. This issue is fixed in version 2.0.5.
- Product
- defaults-deep
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 31, 2026The fix for CVE-2021-23337 added validation for the variable option in _.template but did not apply the same validation to options.imports key names, and both pCVE-2026-4800 · Other software · lodash · reported by ce714d77-add3-4f53-aff5-83d477b104bbHigh 8.1
The fix for CVE-2021-23337 added validation for the variable option in _.template but did not apply the same validation to options.imports key names, and both paths flow into the same Function() constructor sink. When an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time. Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in, so if Object.prototype has been polluted by another vector the polluted keys are copied into the imports object and passed to Function(). The issue is fixed in 4.18.1 for lodash, lodash-es, lodash-amd, and lodash.template. As a workaround, do not pass untrusted input as key names in options.imports; use only developer-controlled, static key names.
- Product
- lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.openjsf.orggithub.com
Mar 31, 2026The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution.CVE-2026-2950 · Other software · lodash · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 6.5
The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. The fix for CVE-2025-13465 only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype. The issue permits deletion of prototype properties but does not allow overwriting their original behavior. The issue is patched from 4.18.0 to 4.18.1 depending on the package: lodash, lodash-es, and lodash-amd in 4.18.1, and the standalone lodash.unset and lodash.omit packages in 4.18.0.
- Product
- lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.openjsf.orggithub.com
Jan 21, 2026The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution.CVE-2025-13465 · Other software · Lodash · reported by ce714d77-add3-4f53-aff5-83d477b104bbMedium 6.9
The _.unset and _.omit functions in Lodash are vulnerable to prototype pollution. An attacker can pass crafted paths which cause Lodash to delete methods from global prototypes. The issue permits deletion of properties but does not allow overwriting their original behavior. The issue is patched from 4.17.23 to 4.18.0 depending on the package: lodash, lodash-es, and lodash-amd in 4.17.23, and the standalone lodash.unset and lodash.omit packages in 4.18.0.
- Product
- lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcna.openjsf.orggithub.com
Feb 15, 2021Lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.CVE-2021-23337 · Other software · Lodash · reported by report@snyk.ioHigh 7.2
Lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.
- Product
- Lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert-portal.siemens.comgithub.com
Feb 15, 2021Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.CVE-2020-28500 · Other software · Lodash · reported by report@snyk.ioMedium 5.3
Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.
- Product
- Lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcert-portal.siemens.comgithub.com
Jul 15, 2020Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20.CVE-2020-8203 · Other software · Lodash · reported by support@hackerone.comHigh 7.4
Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20.
- Product
- Lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.com
Mar 25, 2020openITCOCKPIT before 3.7.3 has unnecessary files (such as Lodash files) under the web root, which leads to XSS.CVE-2020-10790 · Other software · It-novum · reported by MITREMedium 5.4
openITCOCKPIT before 3.7.3 has unnecessary files (such as Lodash files) under the web root, which leads to XSS.
- Product
- Openitcockpit
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 12, 2019The lodahs package 0.0.1 for Node.js is a Trojan horse, and may have been installed by persons who mistyped the lodash package name.CVE-2019-19771 · Other software · Lodahs Project · reported by MITREHigh 8.8
The lodahs package 0.0.1 for Node.js is a Trojan horse, and may have been installed by persons who mistyped the lodash package name. In particular, the Trojan horse finds and exfiltrates cryptocurrency wallets.
- Product
- Lodahs
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 25, 2019Versions of lodash lower than 4.17.12 are vulnerable to Prototype Pollution.CVE-2019-10744 · Other software · Snyk · reported by report@snyk.ioCritical 9.1
Versions of lodash lower than 4.17.12 are vulnerable to Prototype Pollution. The function defaultsDeep could be tricked into adding or modifying properties of Object.prototype using a constructor payload.
- Product
- lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaccess.redhat.comsecurity.netapp.com
Jul 17, 2019lodash prior to 4.17.11 is affected by: CWE-400: Uncontrolled Resource Consumption.CVE-2019-1010266 · Other software · lodash · reported by josh@bress.netMedium 6.5
lodash prior to 4.17.11 is affected by: CWE-400: Uncontrolled Resource Consumption. The impact is: Denial of service. The component is: Date handler. The attack vector is: Attacker provides very long strings, which the library attempts to match using a regular expression. The fixed version is: 4.17.11.
- Product
- lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 1, 2019A prototype pollution vulnerability was found in lodash <4.17.11 where the functions merge, mergeWith, and defaultsDeep can be tricked into adding or modifying CVE-2018-16487 · Other software · HackerOne · reported by support@hackerone.comMedium 5.6
A prototype pollution vulnerability was found in lodash <4.17.11 where the functions merge, mergeWith, and defaultsDeep can be tricked into adding or modifying properties of Object.prototype.
- Product
- lodash
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordhackerone.comsecurity.netapp.com
Jun 6, 2018lodash node module before 4.17.5 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability via defaultsDeep, merge, and mergeWith functions, whCVE-2018-3721 · Other software · HackerOne · reported by support@hackerone.comMedium 6.5
lodash node module before 4.17.5 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability via defaultsDeep, merge, and mergeWith functions, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.
- Product
- lodash node module
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackerone.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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