# CVE-2026-73031: telegram-search Stored XSS via v-html in MessageList.vue

Status: published. Published: 2026-08-11. Updated: 2026-11-08.

telegram-search contains a stored cross-site scripting vulnerability that allows remote attackers to execute arbitrary JavaScript in victims' browsers by sending crafted messages containing unsanitized HTML to a shared Telegram group. The highlightKeyword function in MessageList.vue passes raw message content directly to v-html without HTML escaping or sanitization, enabling stored, cross-user, zero-click execution of injected payloads such as image onerror handlers when victims browse or search messages.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/groupultra/telegram-search/commit/54f6adced844ce9990228d75e31348bfed934e05
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/GramSearch/telegram-search/pull/654

## Affected products and versions

- GramSearch / telegram-search: ≥ 0; ≤ 1.2.8 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.2 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 8.7 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.66% as of 2026-11-08; percentile 51.92%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/GramSearch/telegram-search (CNA: VulnCheck; product)

- https://github.com/GramSearch/telegram-search/issues/653 (CNA: VulnCheck; issue-tracking)

- https://github.com/groupultra/telegram-search/commit/54f6adced844ce9990228d75e31348bfed934e05 (CNA: VulnCheck; patch)

- https://github.com/GramSearch/telegram-search/pull/654 (CNA: VulnCheck; technical-description, patch)

- https://www.vulncheck.com/advisories/telegram-search-stored-xss-via-v-html-in-messagelist-vue (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-73031; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-73031; retrieved 2026-11-08; source updated Not reported

Revision: 29ebeb859ab9b0a32f139c2cafb3e7223f73a42d9566d308a3738263a278ab5c

Canonical: https://y2.dev/cve/CVE-2026-73031

## Agent and API access

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- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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