LOW
CVE-2026-35538
CWE-88Published: April 3, 2026· Updated: Apr 7, 2026
3.1
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:10.5th
Official Description
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsanitized IMAP SEARCH command arguments could lead to IMAP injection or CSRF bypass during mail search.
Technical Analysis
CVE-2026-35538 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Vendors & Products
roundcube1 product
webmail
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
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Rapid7 / Metasploit
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PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (7)
Quick Facts
CVE IDCVE-2026-35538
CVSS Score3.1 / 10
SeverityLOW
WeaknessCWE-88
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedApr 3, 2026
Related CVEs (CWE-88)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-35538 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.