CVE-2023-4595
CVE-2023-4595 is a high-severity vulnerability in Seattlelab Slmail with a CVSS 3.x base score of 7.5. 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-538.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-538
- Affected product: Seattlelab Slmail
- Published:
- Last modified:
Description
An information exposure vulnerability has been found, the exploitation of which could allow a remote user to retrieve sensitive information stored on the server such as credential files, configuration files, application files, etc., simply by appending any of the following parameters to the end of the URL: %00 %0a, %20, %2a, %a0, %aa, %c0 and %ca.
Frequently asked questions
- What is CVE-2023-4595?
- An information exposure vulnerability has been found, the exploitation of which could allow a remote user to retrieve sensitive information stored on the server such as credential files, configuration files, application files, etc., simply by appending any of the following parameters to the end of the URL: %00 %0a, %20, %2a, %a0, %aa, %c0 and %ca.
- How severe is CVE-2023-4595?
- CVE-2023-4595 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2023-4595 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-4595?
- CVE-2023-4595 affects Seattlelab Slmail. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-4595?
- 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-2023-4595 published?
- CVE-2023-4595 was published on 2023-11-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:seattlelab:slmail:5.5.0.4433:*:*:*:*:*:*:*
More vulnerabilities in Seattlelab Slmail
- CVE-1999-0098 — Critical (CVSS 10.0): Buffer overflow in SMTP HELO command in Sendmail allows a remote attacker to hide activities.
- CVE-2023-4593 — Medium (CVSS 6.5): Path traversal vulnerability whose exploitation could allow an authenticated remote user to bypass SecurityManager's…
- CVE-2023-4594 — Medium (CVSS 6.1): Stored XSS vulnerability. This vulnerability could allow an attacker to store a malicious JavaScript payload via GET…
All CVEs affecting Seattlelab Slmail →
Other CWE-538 vulnerabilities
- CVE-2016-20024 — Critical (CVSS 9.8): ZKTeco ZKTime.Net 3.0.1.6 contains an insecure file permissions vulnerability that allows unprivileged users to…
- CVE-2025-12059 — Critical (CVSS 9.8): Insertion of Sensitive Information into Externally-Accessible File or Directory vulnerability in Logo Software Industry…
- CVE-2023-46723 — High (CVSS 8.9): lte-pic32-writer is a writer for PIC32 devices. In versions 0.0.1 and prior, those who use `sendto.txt` are vulnerable…
- CVE-2026-49298 — High (CVSS 8.8): A bug in Apache Airflow's KubernetesExecutor caused JWT tokens used by worker pods to authenticate against the…
- CVE-2026-21672 — High (CVSS 8.8): A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.
- CVE-2023-7062 — High (CVSS 8.8): The Advanced File Manager Shortcodes plugin for WordPress is vulnerable to Directory Traversal in all versions up to,…