How severe is CVE-2023-28015?

CVE-2023-28015 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 low, integrity none, and availability none.

Is CVE-2023-28015 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28015?

CVE-2023-28015 affects Hcl Domino Appdev Pack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28015?

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

When was CVE-2023-28015 published?

CVE-2023-28015 was published on 2023-05-23 and last updated on 2026-06-17.

CVE-2023-28015

CVE-2023-28015 is a medium-severity vulnerability in Hcl Domino Appdev Pack 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-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Hcl Domino Appdev Pack
Published: 2023-05-23
Last modified: 2026-06-17

Description

The HCL Domino AppDev Pack IAM service is susceptible to a User Account Enumeration vulnerability. During a failed login attempt a difference in messages could allow an attacker to determine if the user is valid or not. The attacker could use this information to focus a brute force attack on valid users.

Frequently asked questions

What is CVE-2023-28015?: The HCL Domino AppDev Pack IAM service is susceptible to a User Account Enumeration vulnerability. During a failed login attempt a difference in messages could allow an attacker to determine if the user is valid or not. The attacker could use this information to focus a brute force attack on valid users.
How severe is CVE-2023-28015?: CVE-2023-28015 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 low, integrity none, and availability none.
Is CVE-2023-28015 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28015?: CVE-2023-28015 affects Hcl Domino Appdev Pack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28015?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-28015 published?: CVE-2023-28015 was published on 2023-05-23 and last updated on 2026-06-17.

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0105093

Affected products (1)

cpe:2.3:a:hcl:domino_appdev_pack:*:*:*:*:*:*:*:*

Other CWE-203 (Observable Discrepancy) vulnerabilities

CVE-2019-25337 — Critical (CVSS 9.8): OwnCloud 8.1.8 contains a username enumeration vulnerability that allows remote attackers to discover user accounts by…
CVE-2026-23519 — Critical (CVSS 9.8): RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in…
CVE-2025-27667 — Critical (CVSS 9.8): Vasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.843 Application 20.0.1923 allows Administrative…
CVE-2024-25714 — Critical (CVSS 9.8): In Rhonabwy through 1.1.13, HMAC signature verification uses a strcmp function that is vulnerable to side-channel…
CVE-2024-25191 — Critical (CVSS 9.8): php-jwt 1.0.0 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass…
CVE-2024-25190 — Critical (CVSS 9.8): l8w8jwt 2.2.1 uses memcmp (which is not constant time) to verify authentication, which makes it easier to bypass…

Browse all CWE-203 (Observable Discrepancy) vulnerabilities →