How severe is CVE-2021-27774?

CVE-2021-27774 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-27774 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27774?

CVE-2021-27774 primarily affects Hcltech Hcl Digital Experience. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-27774?

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

When was CVE-2021-27774 published?

CVE-2021-27774 was published on 2022-09-22 and last updated on 2026-06-17.

CVE-2021-27774

CVE-2021-27774 is a low-severity vulnerability in Hcltech Hcl Digital Experience with a CVSS 3.x base score of 3.1. 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-20.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Hcltech Hcl Digital Experience
Published: 2022-09-22
Last modified: 2026-06-17

Description

User input included in error response, which could be used in a phishing attack.

Frequently asked questions

What is CVE-2021-27774?: User input included in error response, which could be used in a phishing attack.
How severe is CVE-2021-27774?: CVE-2021-27774 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-27774 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27774?: CVE-2021-27774 primarily affects Hcltech Hcl Digital Experience. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-27774?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27774 published?: CVE-2021-27774 was published on 2022-09-22 and last updated on 2026-06-17.

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0100491

Affected products (3)

cpe:2.3:a:hcltech:hcl_digital_experience:8.5:*:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_digital_experience:9.0:*:*:*:*:*:*:*
cpe:2.3:a:hcltech:hcl_digital_experience:9.5:*:*:*:*:*:*:*

More vulnerabilities in Hcltech Hcl Digital Experience

CVE-2020-4101 — Critical (CVSS 9.8): "HCL Digital Experience is susceptible to Server Side Request Forgery."
CVE-2022-38662 — Medium (CVSS 6.1): In HCL Digital Experience, URLs can be constructed to redirect users to untrusted sites.
CVE-2020-14222 — Medium (CVSS 6.1): HCL Digital Experience 8.5, 9.0, 9.5 is susceptible to cross site scripting (XSS). One subcomponent is vulnerable to…

All CVEs affecting Hcltech Hcl Digital Experience →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-93952 — Critical (CVSS 10.0): VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access…
CVE-2026-77554 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi…
CVE-2026-77537 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi…
CVE-2026-48056 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download video content. Versions prior to 2.5.0…
CVE-2026-33267 — Critical (CVSS 10.0): Improper Input Validation vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.2.0…
CVE-2026-47668 — Critical (CVSS 10.0): DbGate is cross-platform database manager. In versions 7.1.8 and prior, DbGate's JSON script runner (`POST…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →