Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-33657

EspoCRM is an open source customer relationship management application. Versions 9.3.3 and below have a stored HTML injection vulnerability that allows any authenticated user with standard (non-administrative) privileges to inject arbitrary HTML into system-generated email notifications by crafting malicious content in the post field of stream activity notes. The vulnerability exists because server-side Handlebars templates render the post field using unescaped triple-brace syntax, the Markdown
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5a718ffb4e5da2f5c18fbd7bbd918549de4637b4f6be370874791eaa56361178
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-80","description":"CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"espocrm","vendor":"espocrm","versions":[{"status":"affected","version":"< 9.3.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.6,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-80","description":"CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/espocrm/espocrm/releases/tag/9.3.4","tags":["x_refsource_MISC"],"url":"https://github.com/espocrm/espocrm/releases/tag/9.3.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/cna/references/1
{"name":"https://github.com/espocrm/espocrm/security/advisories/GHSA-8prm-r5j9-j574","tags":["x_refsource_CONFIRM"],"url":"https://github.com/espocrm/espocrm/security/advisories/GHSA-8prm-r5j9-j574"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/espocrm/espocrm/security/advisories/GHSA-8prm-r5j9-j574"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1f60ddd5ea82956df0ccf59ded98820c8da9f1ccaa2f360db421926acf5f20c0 · sha256:0324c6bfe82d5954… · /containers/adp/0/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.

← Back to CVE Explorer