How severe is CVE-2021-26711?

CVE-2021-26711 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-26711 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26711?

CVE-2021-26711 affects Redwood Report2web. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26711?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-26711 published?

CVE-2021-26711 was published on 2021-02-05 and last updated on 2026-06-17.

CVE-2021-26711

CVE-2021-26711 is a medium-severity vulnerability in Redwood Report2web with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-610.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-610
Affected product: Redwood Report2web
Published: 2021-02-05
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2021-26711?: 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.
How severe is CVE-2021-26711?: CVE-2021-26711 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-26711 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26711?: CVE-2021-26711 affects Redwood Report2web. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26711?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26711 published?: CVE-2021-26711 was published on 2021-02-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:redwood:report2web:4.3.4.5:*:*:*:*:*:*:*

More vulnerabilities in Redwood Report2web

CVE-2021-26710 — Medium (CVSS 6.1): A cross-site scripting (XSS) issue in the login panel in Redwood Report2Web 4.3.4.5 and 4.5.3 allows remote attackers…

All CVEs affecting Redwood Report2web →

Other CWE-610 vulnerabilities

CVE-2022-27593 — Critical (CVSS 10.0): An externally controlled reference to a resource vulnerability has been reported to affect QNAP NAS running Photo…
CVE-2019-7290 — Critical (CVSS 10.0): An access issue was addressed with additional sandbox restrictions. This issue is fixed in Shortcuts 2.1.3 for iOS. A…
CVE-2017-16088 — Critical (CVSS 10.0): The safe-eval module describes itself as a safer version of eval. By accessing the object constructors, un-sanitized…
CVE-2022-39206 — Critical (CVSS 9.9): Onedev is an open source, self-hosted Git Server with CI/CD and Kanban. When using Docker-based job executors, the…
CVE-2026-47643 — Critical (CVSS 9.8): External control of file name or path in Azure Stack Edge allows an unauthorized attacker to execute code over a…
CVE-2022-20239 — Critical (CVSS 9.8): remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the…

Browse all CWE-610 vulnerabilities →