CVE Explorer
CVE-2026-26144
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"platforms":["32-bit Systems","x64-based Systems"],"product":"Microsoft 365 Apps for Enterprise","vendor":"Microsoft","versions":[{"lessThan":"https://aka.ms/OfficeSecurityReleases","status":"affected","version":"16.0.1","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:fd19a14aa45e6b34d4b9ad17e736052f95d633d5f6e5b9e3305ec7cd59c1e880 · sha256:3dde30b6766013db… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:fd19a14aa45e6b34d4b9ad17e736052f95d633d5f6e5b9e3305ec7cd59c1e880 · sha256:3dde30b6766013db… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en-US","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:fd19a14aa45e6b34d4b9ad17e736052f95d633d5f6e5b9e3305ec7cd59c1e880 · sha256:3dde30b6766013db… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"Microsoft Excel Information Disclosure Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26144"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:fd19a14aa45e6b34d4b9ad17e736052f95d633d5f6e5b9e3305ec7cd59c1e880 · sha256:3dde30b6766013db… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.