How severe is CVE-2018-3815?

CVE-2018-3815 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-3815 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3815?

CVE-2018-3815 affects Stalker Communigate Pro. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3815?

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

When was CVE-2018-3815 published?

CVE-2018-3815 was published on 2018-01-08 and last updated on 2026-06-17.

CVE-2018-3815

CVE-2018-3815 is a medium-severity vulnerability in Stalker Communigate Pro with a CVSS 3.x base score of 5.7. 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
CVSS v2: 3.5
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Stalker Communigate Pro
Published: 2018-01-08
Last modified: 2026-06-17

Description

The "XML Interface to Messaging, Scheduling, and Signaling" (XIMSS) protocol implementation in CommuniGate Pro (CGP) 6.2 suffers from a Missing XIMSS Protocol Validation attack that leads to an email spoofing attack, allowing a malicious authenticated attacker to send a message from any source email address. The attack uses an HTTP POST request to a /Session URI, and interchanges the XML From and To elements.

Frequently asked questions

What is CVE-2018-3815?: The "XML Interface to Messaging, Scheduling, and Signaling" (XIMSS) protocol implementation in CommuniGate Pro (CGP) 6.2 suffers from a Missing XIMSS Protocol Validation attack that leads to an email spoofing attack, allowing a malicious authenticated attacker to send a message from any source email address. The attack uses an HTTP POST request to a /Session URI, and interchanges the XML From and To elements.
How severe is CVE-2018-3815?: CVE-2018-3815 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-3815 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3815?: CVE-2018-3815 affects Stalker Communigate Pro. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3815?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-3815 published?: CVE-2018-3815 was published on 2018-01-08 and last updated on 2026-06-17.

References

https://packetstormsecurity.com/files/145724/communigatepro62-spoof

Affected products (1)

cpe:2.3:a:stalker:communigate_pro:6.2:*:*:*:*:*:*:*

More vulnerabilities in Stalker Communigate Pro

CVE-2006-0468 — High (CVSS 7.5): CommuniGate Pro Core Server before 5.0.7 allows remote attackers to cause a denial of service (crash) and possibly…
CVE-2003-1481 — Medium (CVSS 5.8): CommuniGate Pro 3.1 through 4.0.6 sends the session ID in the referer field for an HTTP request for an image, which…
CVE-2005-1007 — Medium (CVSS 5.0): Unknown vulnerability in the LIST functionality in CommuniGate Pro before 4.3c3 allows remote attackers to cause a…
CVE-2002-2375 — Medium (CVSS 5.0): Directory traversal vulnerability in CommuniGate Pro 4.0b4 and possibly earlier versions allows remote attackers to…
CVE-2000-1002 — Medium (CVSS 5.0): POP3 daemon in Stalker CommuniGate Pro 3.3.2 generates different error messages for invalid usernames versus invalid…
CVE-2000-0634 — Medium (CVSS 5.0): The web administration interface for CommuniGate Pro 3.2.5 and earlier allows remote attackers to read arbitrary files…

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →