What is the CVSS score of CVE-2021-26711?

CVE-2021-26711 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 1.9%.

Is there a public PoC exploit available for CVE-2021-26711?

Yes, a public proof-of-concept exploit is available for CVE-2021-26711. Prioritise patching immediately. EPSS: 1.9%.

Report2Web CVE-2021-26711

MEDIUM

Externally Controlled Reference to a Resource in Another Sphere (CWE-610)

2021-02-05 cve@mitre.org

Code Injection Report2Web

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Feb 05, 2021 - 14:15 nvd

MEDIUM 5.3

DescriptionNVD

AnalysisAI

A frame-injection issue in the online help in Redwood Report2Web 4.3.4.5 allows remote attackers to render an external resource inside a frame via the help/Online_Help/NetHelp/default.htm turl. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-610. A frame-injection issue in the online help in Redwood Report2Web 4.3.4.5 allows remote attackers to render an external resource inside a frame via the help/Online_Help/NetHelp/default.htm turl parameter. Affected products include: Redwood Report2Web.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.