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CWE-20

Improper Input Validation

8653 CVEs Avg CVSS 6.9 MITRE
970
CRITICAL
3622
HIGH
3735
MEDIUM
311
LOW
1496
POC
62
KEV

Monthly

CVE-2026-20153 HIGH This Week

Denial of service in Cisco RoomOS software allows remote, unauthenticated attackers to disrupt device availability through improperly validated input, resulting in a high availability impact (CVSS 7.5). The flaw was internally discovered during a Cisco engineering security review and shipped in a software hardening release bundling multiple CWE-20 input-validation issues. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Cisco Information Disclosure Cisco Roomos Software
NVD VulDB
CVSS 3.1
7.5
CVE-2026-61427 MEDIUM PATCH This Month

PraisonAI's MCP HTTP-stream transport silently skips authentication when no API key is configured at startup, allowing unauthenticated clients to initialize sessions, enumerate tools via tools/list, and invoke arbitrary tools via tools/call. Affected versions are all releases before 4.6.78. Compounding this, the dispatcher passes tool-call arguments directly to handlers without validating them against the advertised inputSchema, meaning a client can supply malformed or out-of-schema arguments to any registered tool. No public exploit code or CISA KEV listing has been identified at the time of analysis.

Information Disclosure Praisonai
NVD GitHub
CVSS 4.0
6.9
CVE-2026-56398 HIGH PATCH This Week

Stored cross-site scripting in Open WebUI before 0.9.5 lets an attacker plant a malicious SVG as a victim's OAuth profile image and execute script in the application's origin. During OAuth login, the `picture` claim URL is fetched and its MIME type is guessed from the file extension rather than the response Content-Type, so a `.svg` URL is stored as a `data:image/svg+xml;base64,...` URI that bypasses the profile-image allowlist; when an authenticated user opens the profile image endpoint the SVG is served inline with no default CSP, running JavaScript that reads `localStorage.token` for account takeover. Reported by VulnCheck with a detailed GHSA source-code advisory; no public exploit identified at time of analysis and it is not in CISA KEV.

XSS Open Webui
NVD GitHub
CVSS 4.0
8.5
CVE-2026-56349 MEDIUM PATCH This Month

Input validation bypass in n8n's Guardrail node (versions before 2.10.0) allows end users interacting with affected workflows to circumvent AI safety guardrail instructions through crafted inputs, undermining workflow integrity. Any n8n deployment running a workflow that incorporates the Guardrail node is exposed; instances not using that node are entirely unaffected regardless of version. No public exploit code has been identified and this CVE does not appear in CISA KEV; a vendor-confirmed patch is available in n8n 2.10.0.

Authentication Bypass N8n
NVD GitHub
CVSS 4.0
6.3
CVE-2026-48353 MEDIUM This Month

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could lead to arbitrary file system read. An attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Information Disclosure
NVD VulDB
CVSS 3.1
5.5
EPSS
0.2%
CVE-2026-48352 HIGH This Week

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

Denial Of Service
NVD VulDB
CVSS 3.1
7.5
EPSS
0.4%
CVE-2026-48351 HIGH This Week

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

Denial Of Service
NVD
CVSS 3.1
7.5
EPSS
0.4%
CVE-2026-48334 CRITICAL Act Now

Illustrator is affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.

RCE
NVD
CVSS 3.1
9.3
EPSS
0.4%
CVE-2026-48312 MEDIUM This Month

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.

Authentication Bypass
NVD
CVSS 3.1
6.8
EPSS
0.2%
CVE-2026-48302 MEDIUM This Month

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

Denial Of Service
NVD
CVSS 3.1
6.2
EPSS
0.2%
CVSS 7.5
HIGH This Week

Denial of service in Cisco RoomOS software allows remote, unauthenticated attackers to disrupt device availability through improperly validated input, resulting in a high availability impact (CVSS 7.5). The flaw was internally discovered during a Cisco engineering security review and shipped in a software hardening release bundling multiple CWE-20 input-validation issues. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Cisco Information Disclosure Cisco Roomos Software
NVD VulDB
CVSS 6.9
MEDIUM PATCH This Month

PraisonAI's MCP HTTP-stream transport silently skips authentication when no API key is configured at startup, allowing unauthenticated clients to initialize sessions, enumerate tools via tools/list, and invoke arbitrary tools via tools/call. Affected versions are all releases before 4.6.78. Compounding this, the dispatcher passes tool-call arguments directly to handlers without validating them against the advertised inputSchema, meaning a client can supply malformed or out-of-schema arguments to any registered tool. No public exploit code or CISA KEV listing has been identified at the time of analysis.

Information Disclosure Praisonai
NVD GitHub
CVSS 8.5
HIGH PATCH This Week

Stored cross-site scripting in Open WebUI before 0.9.5 lets an attacker plant a malicious SVG as a victim's OAuth profile image and execute script in the application's origin. During OAuth login, the `picture` claim URL is fetched and its MIME type is guessed from the file extension rather than the response Content-Type, so a `.svg` URL is stored as a `data:image/svg+xml;base64,...` URI that bypasses the profile-image allowlist; when an authenticated user opens the profile image endpoint the SVG is served inline with no default CSP, running JavaScript that reads `localStorage.token` for account takeover. Reported by VulnCheck with a detailed GHSA source-code advisory; no public exploit identified at time of analysis and it is not in CISA KEV.

XSS Open Webui
NVD GitHub
CVSS 6.3
MEDIUM PATCH This Month

Input validation bypass in n8n's Guardrail node (versions before 2.10.0) allows end users interacting with affected workflows to circumvent AI safety guardrail instructions through crafted inputs, undermining workflow integrity. Any n8n deployment running a workflow that incorporates the Guardrail node is exposed; instances not using that node are entirely unaffected regardless of version. No public exploit code has been identified and this CVE does not appear in CISA KEV; a vendor-confirmed patch is available in n8n 2.10.0.

Authentication Bypass N8n
NVD GitHub
EPSS 0% CVSS 5.5
MEDIUM This Month

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could lead to arbitrary file system read. An attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Information Disclosure
NVD VulDB
EPSS 0% CVSS 7.5
HIGH This Week

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

Denial Of Service
NVD VulDB
EPSS 0% CVSS 7.5
HIGH This Week

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

Denial Of Service
NVD
EPSS 0% CVSS 9.3
CRITICAL Act Now

Illustrator is affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.

RCE
NVD
EPSS 0% CVSS 6.8
MEDIUM This Month

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.

Authentication Bypass
NVD
EPSS 0% CVSS 6.2
MEDIUM This Month

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

Denial Of Service
NVD

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