Vulnerability · CVE-2026-26930
SmarterTools SmarterMail before 9526 allows XSS via MAPI requests.
Published Feb 16, 2026 · catalog updated Feb 22, 2026 · SmarterTools SmarterMail
Last checked Nov 12, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-26930. EPSS is 0.33%. Act only if a listed version of SmarterTools SmarterMail is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-25067 · Medium
- CVE-2026-24423 · Critical · known exploited
- CVE-2026-23760 · Critical · known exploited
- CVE-2025-52691 · Critical · known exploited
- Severity
- High7.2
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.33%
- Remediation
- Version ranges on file
- Affected products
- vendor SmarterTools SmarterMail 0 <9526
SmarterTools SmarterMail before 9526 allows XSS via MAPI requests.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor SmarterTools SmarterMail 0 <95260 <9526
How to fix CVE-2026-26930
Upgrade
CVE-2026-26930 lists a fix boundary at 9526. Compare the installed build with that boundary before you change production.
Version check
Seen in 0 <9526
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-26930. EPSS is 0.33%. Act only if a listed version of SmarterTools SmarterMail is installed.
Which versions are affected?
Compare what you have installed with SmarterTools SmarterMail 0 <9526 0 <9526. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.33%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Feb 16, 2026 · EUVD
Detected
SmarterTools SmarterMail before 9526 allows XSS via MAPI requests.
Feb 22, 2026 · EUVD
Updated
SmarterTools SmarterMail before 9526 allows XSS via MAPI requests.
Sources
- CVE.orgVulnerability recordCVE-2026-26930
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-26930
30-day exploitation probability 0.33%
first.org - EUVDVulnerability recordEUVD-2026-7682
SmarterTools SmarterMail before 9526 allows XSS via MAPI requests.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 12, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 12, 2026
- CVE.orgNov 9, 2026
- EUVDNov 9, 2026