How severe is CVE-2023-47311?

CVE-2023-47311 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-47311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-47311?

CVE-2023-47311 affects Spaceapplications Yacms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-47311?

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

When was CVE-2023-47311 published?

CVE-2023-47311 was published on 2023-11-20 and last updated on 2026-06-17.

CVE-2023-47311

CVE-2023-47311 is a medium-severity vulnerability in Spaceapplications Yacms with a CVSS 3.x base score of 6.1. 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-1021.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1021
Affected product: Spaceapplications Yacms
Published: 2023-11-20
Last modified: 2026-06-17

Description

An issue in Yamcs 5.8.6 allows attackers to send aribitrary telelcommands in a Command Stack via Clickjacking.

Frequently asked questions

What is CVE-2023-47311?: An issue in Yamcs 5.8.6 allows attackers to send aribitrary telelcommands in a Command Stack via Clickjacking.
How severe is CVE-2023-47311?: CVE-2023-47311 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-47311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-47311?: CVE-2023-47311 affects Spaceapplications Yacms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-47311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-47311 published?: CVE-2023-47311 was published on 2023-11-20 and last updated on 2026-06-17.

References

https://www.linkedin.com/pulse/more-xss-clickjacking-yamcs-v586-visionspace-technologies-uvevf

Affected products (1)

cpe:2.3:a:spaceapplications:yacms:5.8.6:*:*:*:*:*:*:*

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