CVE-2026-73031Public exploitNetwork attack vector

Stored XSS via unescaped v-html message rendering

Published Aug 11, 2026 · Updated Aug 11, 2026

Stored cross-site scripting in GramSearch Telegram Search 1.2.8 and earlier allows remote attackers to execute JavaScript in victims' browsers. MessageList.vue passes verbatim Telegram message content from highlightKeyword into v-html without escaping HTML, so injected event handlers execute during rendering. An attacker must post to an imported shared group, and execution occurs when a victim browses or searches the stored messages.

CVSS severity8.2
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in GramSearch Telegram Search 1.2.8 and earlier allows remote attackers to execute JavaScript in victims' browsers. MessageList.vue passes verbatim Telegram message content from highlightKeyword into v-html without escaping HTML, so injected event handlers execute during rendering. An attacker must post to an imported shared group, and execution occurs when a victim browses or searches the stored messages.

The record

CVE
CVE-2026-73031
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
GramSearch
Product
Telegram Search
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.2.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GramSearch · Telegram Searchversion=0 <=1.2.8

Published CVSS scores

8.2VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
8.7VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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