CVE-2021-27788

CVE-2021-27788 is a high-severity vulnerability in Hcltech Verse with a CVSS 3.x base score of 8.3. 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-79.

Key facts

Description

HCL Verse is susceptible to a Cross Site Scripting (XSS) vulnerability.  By tricking a user into clicking a crafted URL, a remote unauthenticated attacker could execute script in a victim's web browser to perform operations as the victim and/or steal the victim's cookies, session tokens, or other sensitive information.

Frequently asked questions

What is CVE-2021-27788?
HCL Verse is susceptible to a Cross Site Scripting (XSS) vulnerability.  By tricking a user into clicking a crafted URL, a remote unauthenticated attacker could execute script in a victim's web browser to perform operations as the victim and/or steal the victim's cookies, session tokens, or other sensitive information.
How severe is CVE-2021-27788?
CVE-2021-27788 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2021-27788 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27788?
CVE-2021-27788 affects Hcltech Verse. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27788?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-27788 published?
CVE-2021-27788 was published on 2023-03-10 and last updated on 2026-06-17.

References

Affected products (1)

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