CVE-2020-4988

CVE-2020-4988 is a critical-severity vulnerability in Ibm Loopback with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Loopback 8.0.0 contains a vulnerability that could allow an attacker to manipulate or pollute Javascript values and cause a denial of service or possibly execute code. IBM X-Force ID: 192706.

Frequently asked questions

What is CVE-2020-4988?
Loopback 8.0.0 contains a vulnerability that could allow an attacker to manipulate or pollute Javascript values and cause a denial of service or possibly execute code. IBM X-Force ID: 192706.
How severe is CVE-2020-4988?
CVE-2020-4988 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-4988 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4988?
CVE-2020-4988 affects Ibm Loopback. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4988?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-4988 published?
CVE-2020-4988 was published on 2020-12-21 and last updated on 2026-06-17.

References

Affected products (1)